The embedded powers will be very happy if Trump succeeds.
Fewer regulations will mean freer movement of capital, which has historically been a great boon for the wealthy and powerful.
If he manages to double down on coal production, the ensuing government subsidies will benefit those with the resources to capitalize on the undermining of the market (after all, any time you introduce predictability into the market, you are handing money to people who have the influence and resources to exploit it).
If he succeeds in building the wall, then he will have successfully shifted blame for existing economic woes onto Mexican migrants, without evidence, which will mean increased popular mandate for governmental power grabs.
If he succeeds in undermining climate change, he will have two benefits: first, he will have vanquished scientific and evidence-based opposition in general, and second, he will have undermined barriers between business and exploitation of known public health undermining scenarios.
If he succeeds in cowing the media, he will have removed one of the few non-governmental checks and balances on transparency of government.
Finally, if he succeeds in general, it will be at the expense of the already tenuous necessity for politicians to tie their agendas to evidence/science-based approaches to policy creation.
I say all of this not as an inveterate liberal, but as someone who is continually bewildered by the fact that Trump can make things up, without evidence, and have sufficient support to transform them into public policy. Actually I should cop to the fact that I'm not that bewildered--history is of course littered with leaders who have done the same, and whether or not they actually benefit the people who brought them to power is really an analyst's roulette game.