It's not necessarily that people value appearances
over personality, but they value appearances
with personality. My mother reminds me that we're all beautiful in God's eyes, so to speak. I respond with, "Yes, but you wouldn't fall in love with someone who, basically, looked like various depictions of Quasimodo, no matter how much of a good person he was."
Humans are hard-wired, of sorts, to seek out beauty. Through appearance we can usually tell the relative health of a potential mate (by skin tone, symmetry, hair glossiness, tooth color, etc.).
I would never sleep with someone I wasn't physically attracted to, I don't see how anyone would, except maybe prostitutes. An aspect for the women to consider, as well, she might be a chubby chaser. There are female chubby chasers, as well.
Sadly, when women talk about what they want in a man, only the most honest will include physical aspects. Either because they are trying not to be shallow, or they don't think of them until they're faced with reality, that single, good-looking people are rarely
good people.
However, according to one
study, marrying an ugly man will assure a happier relationship, so you could share that with them, too. Tell them that they might want to lower their appearance standards, and just grit their teeth through sex.