I doubt anyone will have influence under this system except the one who has access to the money. All donations will be anonymous so even when the party comes into power, there is no way to reward the biggest donors an Politics is all about having influence through donations.
I agree with you. I don't trust any of the politicians and not give them their money. Another thing is that if someone offers the idea of how to earn enough money part of which will go to Finance his campaign I would have thought.