Chazal are very against using Torah to earn a living for that very reason. TO BE CLEAR, I am not against anyone who trades Torah for money. It is fine and good and great. … I’m just saying Chazal are against it, because when you accept money to be a Rabbi, or teach Torah, you are inherently limited by your employer and you can only challenge evil so far until it threatens you job. … The most important thing about being a Rabbi, I think is challenging evil. But if it’s hidden by a paper thin veil of goodness that looks so beautiful, forget it. Try to lift that baby up, expose the ugliness under that shiny red sheet, and and you’ll get fired in a second, and never rehired as a Rabbi anywhere.
Rafi Farber, “More on Shmuly Yanklowitz Why I Attack Him Personally, and Defanged Rabbis”, The Jewish Libertarian (22 June 2015) [http://thejewishlibertarian.com/2015/06/22/more-on-shmuly-yanklowitz-why-i-attack-him-personally-and-defanged-rabbis/]