Commercial and non-commercial yoga classes?

Some people labelled the yoga in yoga classes being taught without fees as ‘non-commercial’, and the yoga being taught in yoga classes with fees as ‘commercial’. Does that mean the teachings of yoga being taught in both commercial and non-commercial yoga classes will be different, although there might be different intentions behind it? There’s no guarantee that there won’t be any impure intention in the non-commercial yoga classes, nor there must be impure intention in the commercial yoga classes. Non-commercial yoga classes doesn’t guarantee all the yoga students will be free from ignorance and egoism. And it doesn’t mean that all the students in the commercial yoga classes will not be free from ignorance and egoism. If yoga being taught in the commercial yoga classes can bring certain awareness to the society, and more people are becoming more aware of their minds, and learn how to be kind to themselves and to others, what’s so wrong with the commercial yoga classes then? Unless there are corruptions exist in the yoga classes among the teachers and the students, it doesn’t matter if it is non-commercial or commercial yoga classes, then there’s something is going against the teachings of yoga.

Om shanti.