...seriously, though, Parker's love of money is not actually tied to any sort of desire for worldly material goods (quite the contrary, given how much money she has versus how we see her live). By the end of the first episode of Parker's canon, she has "...retirement money. This is 'go legit and buy an island money'." — basically, more than enough to keep anybody (who is not Parker) happy for a long, long time. Yet for comparison, despite having all this money, she lives in a storage unit containing a bed, a bookshelf full of cereal (and bowls, and spoons with which to eat it), a drawing board, a rack of harnesses, a table of tools, and some job-planning equipment. And that's pretty much it! So she's not in it for the luxury of having money or the things she can get with the money. She just...really likes money.

Also cute and notable is that for Christmas, the team "parents" get her a stack of presumably hundred-dollar bills with "non-sequential serial numbers — my favorite!" and she is just positively happy as a clam about this.

So if Parker had an infinite amount of money at her disposal, she would...basically put it into an infinite amount of tax-sheltered covert bank accounts in the Cayman Islands and proceed to keep trying to get more money.

Because money.

It is pretty much the only thing she knows she likes in the entire world.