Why are powerful characters also good at everything else?
If you make separate lists of the Force users with the most raw power, knowledge of the Force, intelligence, charisma, etc., you'll find a substantial amount of overlap between them. There are exceptions and variations, of course, but there seems to be a trend.
Sidious is a political mastermind and prolific scholar who just happens to be incredibly charismatic and, well, the most powerful sith lord of all time.
Yoda is ridiculously powerful and, oh yeah, he's also a really innovative tactician.
Luke is good at everything.
etc.
Now in some cases these abilities may evidently affect one another, like being strong with the Force opening barriers to learning new techniques, or manipulating people and foreseeing events, but I still think that there's an unusual positive manifold going on here.
I guess there's precedence in real life; we know that aptitudes in different cognitive tasks are correlated with one another, for instance (see: general intelligence factor). But Star Wars extends this to everything. Clearly from a narrative standpoint it's just convenient to dogpile abilities onto characters, but from an in-universe standpoint, maybe Force potential correlates with IQ or something?