Hey, yid613, wake up and smell the coffee.
It’s the teachers and staff that are moser nefesh to teach our children and they are grossly underpaid. It’s the school owners and their heirs who live the comfortable life with the latest leased cars; nicest homes; vacationing and traveling business/first class to Israel and elsewhere.
You say that you are “ashamed to see that these posters are “frum yidden who are yarei shamayim””. Instead of being ashamed at the victims, you ought to be ashamed at the those who are stealing from our moras and rabbeim.
You also say that since it costs “between 12,000 – 14,000 a year” to educate a child, “you had better keep quiet”. Do you think the owners take one nickel out of their pockets to educate the students? Didn’t you ever hear of fundraising; dinners; government programs; federation grants; PTA; foundation grants; etc.?
This is all part of the business of owning a school. Halavai the teachers should be the beneficiaries of some of the grants so they can be paid on time and live somewhat decently.