I will say it’s a bit more complicated than that…
If you can stomach/embrace the evil it opens up some fun/interesting Act 3 stuff. The Durge arc and the “full-send evil” endings for Astarion and Shadynasty specifically were neat to see given how not-evil they can turn out in a “good” playthrough.
“Why don’t I strap on my strength helmet and squeeze down into a strength cannon and fire off into Strengthland where strength grows on strengthees???”