That's how the world works

Depends who clicks better tbh

Simple logic really. Why have a only a Ferrari or a Lamborghini when you could have both?

I don't feel like this should be a small fact frog

Imo it's a lot more complicated than that. For me personally, there's nothing more off-putting than someone who's hot but dumb as a brick or really boring, and I'd rather have a nice conversation than stare at a pretty face for hours.
But really, looks in a way reflect your personality, generally speaking (there are exceptions, people with metabolism/hormone issues for example). Sure, some people are born with a prettier face than others but if you shower once a month, eat junk food all day and never exercise, then a pretty face is useless because you will be unattractive anyway, and it shows a piece of your personality as well, namely your laziness and low self respect.
That's how it is with guys at least. With girls it's even wackier because you can neglect some of these things and compensate it by slapping on some makeup. Idk I'm actually quite hostile towards the makeup industry but I won't say much because I don't want people to get mad at me and also it would be off topic.

Depends what they're doing with that personality.

Look, not saying being good looking will get you all the way but it'll get your foot in the door.

I'm good looking with a 50/50 personality. You either love me or you hate me. It also depends on what mood I'm in and which face I want you to see.