It is not only about those who want to learn reiki for the money making aspect.
I have heard quite a few stories from people whose reiki master/teacher almost scared them! Some who almost bully & threaten them into submission & the continuance of their learning with them!! Surely these people should never have been attuned in the first place, as it would seem that reiki has not improved their character?? Some reiki masters can send out pretty bad vibes. I'm sure they're in the minority, of course!