Plus he outright stole government money, not even the pretense of some kind of pass-through contracting entity or something, just brazenly stole cash. And later went on a PR tour lying about being destitute to get Congress to give him a big pension (presidents didn’t get one before that; and he was doing quite alright financially without it).

Whatever the party affiliation, he was an actual thief and scam-artist at the public’s expense, so wouldn’t be a great example of some high water mark for public service.