Advertisement works and it opens up new market segments that previously are not interested in these things, and in a resource constrained environment (as in the admissions are more or less constant), it forces everyone to act. That and the almost complete bulldozing of the current tutoring infrastructure are going to leave that space blank for a good while - hopefully to some better childhoods at least in the near terms.

It's never about changing it for everyone, if it works on enough families, most families, or even some families, that were previously going to impose that insane tutoring on their kids, then it's worked in the right direction.

Personally, I think this obsession is illogical, a better major is a far better indicator of success than the differences in college a few points of Gaokao are going to make.