[tomasien]

Exactly! It's not about "tainted" vs. "untainted", it's about setting some limits and trying to be a part of the solution. Doing so puts in progress something that WILL start to shift things. You don't have to be money trail inspector, you just need to be your own ethical link in an otherwise ethically unknown chain.

You're responsible for making a reasonable effort where you think it's important not for the actions of everyone who has ever touched a dollar you're now touching.