Most if not all the people that interacted with Prophet Yusuf (PBUH) were not just influenced by his good looks but his overall character. Even the woman, who seduced him, did not do so just because of the looks. It was in her house that Yusuf (PBUH) grew up, and she was therefore familiar with, if not used to his appearance. (She past the ‘shock phase’ that led the other women who saw him for the first time to “cut their hands” ! She was a mature married woman (not a teenage girl!) and knew better how to ‘judge’ a man.
Those who dealt with Yusuf (PBUH) in prison saw in him other than his looks: “we see you one of the Mushsineen (doers of good)”. When the king saw him he said: “you are with us in high rank and fully trusted” because now the king was aware of Yusuf’s (PBUH) abilities, not appearance.
Mature men as well see in women other than their looks. Khadija (Ra) was beautiful but certainly there were others. Yet Muhammad (PBUH) saw in Khadija (Ra) what the women saw in Yusuf (PBUH): genuine character: “she accepted me when people rejected me, she believed in me when people doubted me, she shared her wealth with me when people deprived me”.
Unfortunately, we live in a celebrity based culture that emphasizes looks, not personality. I am not saying that looks should not be taken into consideration (by the way, even if Hollywood aims to create beauty standards, beauty is relative and culturally defined) but that character must take precedence when making serious judgments and decisions, especially as serious as marriage!