The very large population earning $30-$50 a week work for companies or individuals who will never report that salary in order to avoid paying taxes on it. This means any statistics related to this issue are going to be hard to trust namely, the situation looks better than it is and thus why so many desperately want to cross the border. It's not like Mexican companies don't make money, they make tons of it. They just don't share or invest it.
At least no one working on a stable company, im sure theres people working on the fields that earn the minimum. I live in Mexico and i don't know a single person that earns the minimum salary. Even people doing interships earn more than the that.
