Again, there are more variables you need to normalize by, but this idea that facial symmetry is not an indicator of many other vectors of human performance and health is a psyop by modern society
In extreme cases, I think you can say that assymmetry is more correlated with worse outcomes in all kinds of things. But that's different from saying that symmetry is this big indicator of good character or intellect. It's just not. There is a psyop in society to say that looks don't matter, when they do. But let's not kid ourselves. Discrimination based on looks is 95% exactly that, and there is little correlation between looks and intellectual potential. If you look good, it's like playing life on easy mode, because everyone wants to accomodate you and not because you're better at everything. If you're not attractive, you have no choice but to cultivate higher talent because there is no other way for you to succeed.