Yeah Trump is very simple - he punishes anyone who doesn't actively support him and rewards anyone who does. Anything he does for anybody is simply to show others that if you're good to Trump, he'll throw you a bone too.
He spends so much time performing for his base to ensure he has enough political power for that system to work. Once his base gets bored of him he'll be nothing.
I knew guys running their own businesses that benefitted from the 2017 tax breaks. Unfortunately, the dumb fucks didn't notice those were temporary from the outset and staged to revert back after the next presidential election. And those tax breaks directly give Republicans the excuse to say "we don't have money for all these social programs."