He made, as he put it in his first book, deals. The deals were voluntary. He didn't use a .38 or a broadsword to get people to agree. An omniscient central planner would have ordered the same move. Market capitalism should be defended as the most altruistic of systems, each capitalist working, working, working to help a customer, for pay.
Trump does good by doing well.
And even from a strictly individual view the bourgeois virtues, though not those of Achilles or Jesus, are not ethical zeroes. It softens and polishes the manners of men. No merchant he. The honesty of a society of merchants, as in that much maligned model of the mercantile society, the small Midwestern city, goes beyond what would be strictly self-interested in a society of rats. A reputation for fair dealing is necessary for a roofer whose trade is limited to a place of 50,000.