Why Don't Medical Spa Consultant's Make More Money?

There's no dearth of medical spa cosultants who don't seem to be making any money... how come?

If you're running a medical spa you've been approached by any number of conslultants who want to "help you grow your business". (They seem to have very much the same mantra that your Botox and filler reps have when they pitch their latest co-marketing campaigns.)

How come they don't make any money