I dunno. It's sort of like D&D fighters at 20th level with +30 or better ABs on their first attack. Nobody seems to be complaining about that.
If I had somebody trying to play Ozymandias (from Watchmen) a la a 20th level PC who had a +30-+40 Wealth bonus or better, I would really just treat monetary concerns as a game plot point for them from then on out. They could provide regular equipment to the other PCs with no rolls or problems, I'd probably let them have a personal jet to fly everybody around on missions without asking for rolls. It's part of a lifestyle ... but I could think of some interesting things for a PC to do with that sort of Wealth bonus.
They're off in a trackless South American jungle and discover the cure for an alien plague in the form of 50,000 gallons of alien honey from a downed alien craft ... how do they get it home? THAT's a problem for one of the richest men in the world. "As you stumble out of the jungle dishevled, torn, dirty, and having lost all of the equipment you started with, including your wallet and all of your ID, you spot a port in the distance ... and an old dilapidated oil tanker, which looks like it's been tugged in to be scrapped." Two days of wheeling, dealing, trying to convince the local policia that not only are you not crazy, you're who you say you are and if you can JUST use a PHONE you can certainly get some money transfers set up to buy this beautiful tanker ... and while we wait they gather up every diver and welder in the surrounding countryside and start patching those holes ... because if we don't get that honey out of here in four days 80% of the world's population is going to go belly up like fish in a bowl.
Negatives, positives from role playing, etc etc. That's a roll for a game.
--fje