It isn't revenge, although it would be portrayed that way by the media machine. It is about righting a very wrong, turn a blind eye system.
Trump has to fight a very biased MSM, Big Tech, many entrenched government agencies, and embedded hostile foreign advisories.
If Trump is portrayed as a witch hunter then many, if not most, of his efforts will be dismissed as political persecution.
Again, I don't know if that is Trumps reasoning but, right or wrong, his actions in the past have generally produced positive results.
I agree with
Fahrenheit451 in that the corruption is massive and I too, would like revenge as well a justice.
However, you have to play the cards you are dealt with and do what you have to do.
Trump will make mistakes, but he is best qualified to make fewer than anyone else I can think of.