An unnamed Wall Street figure was quoted in an article in Politico a few days ago as saying something similar to “Trump may be a bit of a moron, but he’s our moron.” That pretty well sums up the relationship between the two.
Trump filled his cabinet with Wall Street types because he thinks rich people are winners and because he loves the idea of plutocrats sucking up to him. The bottom line, however, is that Trump made a lot of his money just being a celebrity, and he never played by the same rules that Wall Street people do. Wall Street is really a fairly gray, conservative, rules-bound place; Trump never ran his business that way, and nothing has changed in his new job.
The most prominent Wall Streeter in his administration is now on his way out. Wall Street hates tariffs and the chaos that is Trump’s hallmark. Where is this relationship going? Barring a disaster, the two will probably continue to tolerate each other with a mixture of public adulation and private contempt.