They don't enjoy being kicked in the head, they agree that part is bad, but they experience joy knowing that people they don't like got kicked in the head.
A difficulty is coming up with a way to ensure your wealthiest donors don't get kicked in the head, they annoyingly may not accept that it's a fair price unlike voters - but you can often fiddle around this, we'll find a way. If that donor doesn't even live in the area affected by the policy, for example because he's a War Criminal who lives in a different country entirely, that's not a problem...