.....e.g,. Trump could gain more favor with me if his a actions cause greater good in the US, despite my disdain for his words....
This is exactly what I was going to respond to you with, concerning our recent differences vis a vis Trump's politically incorrect speech.
I think you might have a point. Suppose a businessman says any thing he want for years, it's okay for him to be not politically correct. Then he becomes President. Should he then be more circumspect in his speech?
I think so, to a degree. Now suppose the person is incapable of being more diplomatic, just personality flaws, whatever. But he accomplishes a lot, one thing after another. EG for example, he says things that some might consider offensive for blacks, for hispanics, whatever (you pick the groups). BUT THAT'S OFFSET BY material actions he took to improve their condition.
Well, what then? I'd then say, the rough speech was not relevant, and was far overshadowed by the actions.
That's likely a reasonable way to look at it.