I question, how do you know they are all happy?

I will use my support group as an example. Of the 35 or so regular members, they represent quite a cross section of socio-demography. There were just as many people who came from situations where they seemed to have it all as unhappy as people struggling to get by. Sometimes people with it all are actually hanging onto it by a thread or find no satisfaction or contentment despite having things. Material gain is by no means an indicator of happiness.

As for the apparent shortcomings of your teachers, I think you need to describe more the situation and put the issue into context. For example, they cannot ultimately fix things and make your life better.