Can’t they take this money and just ignore those crazy people honestly.

You don't understand that a ~~bribe~~ - sorry, political donation - is like a job: someone pays a politician to do a job if/when they get elected. If they don't do the job, the next time they run, they won't get more money.

Just like you at your job if you get a salary and you don't do the work: the next month, you don't get a salary anymore.