They already make contributions that doesn't stop them from giving money in other dark ways like this as well. Just like they give money to pacs, as well as the candidates directly as well as a million other ways to keep the real amount given hard to track.

Assets under management come with management fees they can do whatever the fuck they want with that money. When they have trillions under management the fees are a lot. The more shady shit they do the more money they make for clients the more money they get in fees. Look up 2 and 20.