Does anybody have a doubt that private schools are businesses?
Time was when the intensely intellectually curious went to get further education primarily to pursue their passions and fulfill their nature, and the wealthy went because it was the class thing to do.
That was then.
Further education provided class mobility, (the rich didn’t need it, but they wanted to remain in the loop at least conversation-wise 
) and so it became one vehicle and eventually an important one for movin’-on-up.
Today even jobs that should in no way require a BA insist on it. I’ve seen such requirement for receptionists in law offices. Why? Because they can. They imagine it says something and will reflect better on their team.
Now it is a commodity.