People say don’t worry about what others think of you but what you think of yourself. That is true, you shouldn’t worry about it, BUT you should carefully consider how you come across to others and how you show your personal brand to others. If you decided to live your life in a cave in a mountain then that would be fine, if you didn’t care. However, if you intend to network, to build relationships and interact with people then your value is worth as much as how you are perceived. Therefore, you can choose to be an ass, not care and expect people to accept you as someone who is rude, obnoxious or unattractive but don’t be surprised if your love life and relationships don’t last very long.