There’s an old line in enterprise software: nobody ever got fired for buying IBM. It’s decades old and it still runs most B2B purchases happening right now, including yours, probably, whether you admit it or not.
On paper, business buyers are supposed to be the rational ones. Procurement. Scorecards. Weighted criteria. Total cost of ownership. The whole apparatus is designed to strip emotion out of the decision and leave only logic.
Rory Sutherland would point out the obvious thing everyone in the room is too polite to say: the buyer isn’t trying to make the best decision. They’re trying to make the most defensible one. And those are not the same thing.
The hidden job of a B2B purchase
Ask what a business buyer is really optimising for and the official answer is “the best outcome for the company.” The real answer, often, is “not getting blamed if this goes wrong.”
That’s not cynicism. It’s rational, once you see the asymmetry. If they pick the famous vendor and it underperforms, the failure is shared everyone would have made that call. If they pick the smarter, cheaper, lesser-known option and it stumbles, the failure is personal. Their name is on it. Their judgement is the thing that gets questioned.
So the buyer satisfices. They don’t hunt for the optimal choice; they pick the first option that’s good enough and safe enough to survive scrutiny. The big name isn’t winning on features. It’s winning on blame insurance.
This is the uncomfortable thing every challenger brand has to absorb: you are not actually competing on whether you’re better. You’re competing against the fear of looking foolish for choosing you.
Why the logical pitch backfires
Most challengers respond to this by doubling down on logic. More benchmarks. More feature comparisons. A bigger spec sheet proving they beat the incumbent on every axis.
It rarely moves the needle, for a reason Sutherland understands well: the buyer’s hesitation was never logical, so a logical argument can’t dissolve it. You can win every line on the comparison table and still lose, because the table doesn’t address the actual question in the buyer’s head, which is “will I be safe if I’m the one who chose this?”
You don’t answer a fear with a feature.
What costly signalling actually is
Here’s the move that does work, and it’s pure behavioural economics: you have to signal trustworthiness in ways that are expensive to fake.
A claim is cheap. Anyone can say “enterprise-grade” and “trusted by leaders.” Because it’s cheap to say, it carries almost no information. The signals that move a nervous buyer are the ones a fraud couldn’t be bothered to produce:
Named proof, not adjectives. “Used by three of the country’s largest banks” does work that “trusted by enterprises” never will — because naming real, recognisable customers is something you can only do if it’s true. The specificity is the signal.
Evidence of commitment. A serious case study, a real SLA, a reference customer who’ll take a call, a guarantee with teeth. These cost you something to offer. That cost is exactly why they’re believed.
Visible permanence. Buyers read longevity, a real office, a real team, and consistent public presence as proof you’ll still exist to support them in three years. Fly-by-night operators don’t invest in looking permanent.
Social proof in their own world. Not generic logos — peers. What other people in their role, their industry, their regulatory reality are saying. This is where listening to the actual conversation in a market beats any amount of self-description. The buyer trusts the room more than they trust your deck.
Each of these reduces the personal risk of choosing you. That’s the product you’re really selling to a B2B buyer: not capability, but cover.
The reframe for challengers
Stop trying to prove you’re the smartest choice. Start making yourself the safest surprising choice.
The goal is to get the buyer to a place where, if they pick you and someone questions it, they have an answer ready — “they’re already running this at LSEG and American Express, the references checked out, the guarantee was watertight.” You’re not removing the courage required to choose a challenger. You’re lowering the amount of courage required until it’s a risk a sensible person can take.
The incumbent’s whole moat is that choosing them requires no courage at all. You can’t out-logic that. You can only out-reassure it — by stacking up the expensive-to-fake signals until “nobody gets fired for buying the big name” quietly becomes “nobody got fired for buying the one with all that proof, either.”
Logic tells the buyer what’s true. Signalling tells them what’s safe. In B2B, safe is the one that closes.
