More that its dead easy to become permanently completely filthy rich by abusing the current system with no outlay beyond skill points to 'start' the reaction. If it required feats and occupation to establish permanent reserves of wealth, then you might have some actual role for the money to play.
Well, I was talking about my proposed band-aid where a 'wealth check' became a modified profession check. You
could spend just skill points, but you'd be approximately the whole random number generator behind someone who actually had it as their primary schtick.
Buying and selling items would only modify your modifier temporarily, which would probably be, "for the duration of the adventure," with the assumption that adventures are generally time-limited.