Why doesn't Mtv stick to music?

Why doesn’t Mtv stick to it’s original purpose and play music videos? Why must they put out all these stupid shows? They should be about music videos and music related subjects like interviews, live performances, etc. They should also play all types of music. Not just the chart toppers. In my opinion Mtv hurts the music industry. They make it harder for talented musicians to get out there because they pretty much dictate what is popular. Would you agree? Why or why not?