But again, it completely depends, yes, if the steemer is using all his power or most of his power on himself it is not benefiting anybody , but this one person, promoting one of his posts though doesn't seem so wrong if he actually created quality content. What is ten dollars if you spent three hours creating your content? If it actually benefits others or if you had to spend money for a camera or any other gear to create the content. It depends on what you give and there are always going to be selfish people, but I like to think that the kinder ones will weed out the bad ones.