> An honest signal doesn't always take effort.

I would guess that the non-effort signals instead involve risk tolerance.

It's a statement that they could easily withstand the consequences of an adverse judgement in ways regular people can't.

If I get turned away from Le Foie Heureux for failing to meet the restaurant dress-code, there's not much I can do. If the sommelier thinks that a billionaire looks like a vagrant, well, the billionaire will make a phone call...