Sorry, but it seems like you're the one being a bit dim here.
First, Biden wasn't "used" by anyone. He has run for president before, and has been excellently qualified and vastly experienced.
Second, of course Trump was used, and they love that he's so easily to manipulate (even foreign leaders have said this). He was backed early on by right-wing organizations and billionaires, and "trained" him, so to speak. For instance, they had him rant about immigrants.
Third, of course Trump is in it for the money! Many people think that he knew he had little chance of winning initially, but was in it to monetize the publicity. Are you not aware of the way he has charged the government for housing guards at his properties? Are you not aware of how he's profited from people staying at his hotels to curry favor? Are you not aware of how he constantly talks about money, and can't even understand long-term alliances not based on money? Are you not aware of how he favors countries with whom he's had financial deals? Are you not aware that he's the only modern president who didn't divest?
Fourth, it's hard to see how anyone could imagine Trump believes in America, considering this willingness to trash the Constitution.
And, actually, he's not haughty. He's just vicious.