This is true to some degree. Obviously if they are mis-spending the money on themselves through corruption, etc, then we should do what we can to put an end to that. Having higher tax rates doesn't necessarily mean we have to just keep giving the money to the same people getting it now. Remember this is our country and "we the people" decide how it is spent.
That said, however, the reason there is so much money around DC is not because they are all sucking up tax dollars, it is almost 100% lobbying money and fat paychecks from the 'revolving door' of people leaving the government to take phony jobs in the private sector. I say phony jobs because they are not really being paid for whatever the their job title supposedly implies, but rather being paid back for the crony capitalism they practiced while in government (and by they I don't mean just the legislators, but the staffers, the lobbyists and the whole lot). Money in politics is what all of this stems from and just saying "well they are corrupt so we should cut taxes" is not a solution to the problem, it is just them winning at one of the many strategies they are using to screw you, me, and everyone else.