The law has pretty firm definitions for things like "in kind payments" and "consideration" - because these sorts of sneaky ways of rewarding people are also relevant to bribes!
So we aren't treading into new uncharted territory where the details need to be figured out - humans have been playing this game for centuries and the law already has effective tools for navigating the tricky parts.
And it is not really working well in my perception, when it is standard procedure for politicians to land high paying (useless) jobs in the industry they formerly regulated, after some grace period.
Or get payed a lot for being a public speaker. Where no one cares about the speech.
So we aren't treading into new uncharted territory where the details need to be figured out - humans have been playing this game for centuries and the law already has effective tools for navigating the tricky parts.