How come if I marry a millionare in his 40s/50s I will be ridiculed but men can also marry "hot" women?

It's accepted in society that men can marry the hottest women they can get. They brag to their friends how beautiful their girl etc and everyone thinks I'm normal. If I marry a much older man that happens to be a multi-millionaire I know people will give me a hard time. They will say I am "marrying for money" but how come men aren't "marrying for beauty" or "marrying for sex." Also, why do people assume just because a man is rich he must also be a sociopath/alcoholic, evil abusive person. Like if I marry rich I'm going to marry someone that is a horrible person. Did they ever think that there are many rich men that are also very kind and donate millions to charity and go to charity balls????