Seriously, I believe that the entire thing is a racket designed to appeal to an emotional need of Realtors. Remember, many agents don't go to college and on top of that there are very few agents who get graduate-level degrees from high-quality institutions. At some point in a person's life, they see their peers crossing into their 40's and it seems like they're getting masters degress left and right with one or two announcing on Facebook that they are getting a Ph.D.
Whether they admit it or not, a sense of envy develops. After all, am I not a successful professional on part with any engineer, sociologist, or psychologist? They want the prestige that goes with having something akin to a "Masters of Psychology" label framed and fixed to their wall.
Somewhere along the way someone figured this out and created classes which can help people with these unspoken emotional pains. After all, a successful agent won't have time to get a graduate degree that's worth getting...so these classes give a false sense of accomplishment that scratches that itch.
I'm not saying that I wouldn't take any classes. I have one in mind to take down the road...but I would rather have a hugely dedicated and interactive social media following than all the designations put together.