Because they take my money earned through my work with the promise of helping others and the community and then they spend it on themselves and idiotic things that have little to no functional purpose. Let me use 1/2 my money on my community - I'll make sure the job gets done right.
I've said it before but if I ever made a large stack of money ( Like millions or billions ) I would put a portion towards funding a public non-government operated healthcare system if the government ever collapsed in the country I was living in at the time, they really do piss away our money on nothing.