That is called society. Have you ever worked in a private company? Went to a private business, like a restaurant or a shopping mall? What happens if you start insulting people and been rude and un-polite like people are in social media? You get fired or you are asked to leave. This is the reason why when you go to a new job they ask for references and call your old employers to inquire about you. The internet is going to be the same. You are going to have a reputation to protect or you are going to pay a price.