you only notice them because they stand out. They are also the ones you would avoid in real life. Have you SEEN a successful mudshark? have you SEEN a mudshark with good credit? Have you seen a mudshark that is leading a good stable life?
Don't get hung up on stupid shit. Just because a girl is pretty does not mean she would make a good mother, wife or even friend. One of the saddest truths in this world is that you will see people who are their own worst enemy and they destroy themselves quickly with their life choices.
Women are like that, so you take mental note of who the bad ones are, and you make sure to avoid them.