Edit: AdeleneDawner and thomblake agree with the parent. This may be a counterargument, or just an answer to my earlier question, namely "Are LessWrongers better able to control this irrational impulse?"

On reflection, it seems to me to be the latter - my cognitive model of money is unusual in general, but this particular reaction seems to be a result of an intentional tweak that I made to reduce my chance of being bribe-able. (Not that I've had a problem with being bribed, but that broad kind of situation registers as 'having my values co-opted', which I'm not at all willing to take risks with.)