Though there are private schools that pay more; private tutors can make a lot more, esp to the super-rich.

[For a broader definition of "teacher", there's professional development seminars, and people who tour the lecture circuit. Though you're talking specifically about teaching children.]

Then, consider doctors (esp specialists and surgeons): there is an immediate, direct, measurable link to profound benefits, and though they are well paid, they aren't paid by commission... is it just because it isn't money?

Lawyers, esp barristers, are closer to the money, and do get a kind of "commission" (though some jurisdictions prohibit it).