Mr Goenka set up the centers after he was profoundly helped by the practice. No money is asked, and donating either time or money can only be done after completing a course, when you sincerely feel that you want to pay it forward for a next student.
Profit is what you have left after you pay the people that the land belongs to, and the expenses of the people organizing and running the operations.
Welcome to Nepal, then (or any other place in the World). And don't tell me, please, that meditation centers are any different. It is a business. Period.
If you think the practitioners are being hypocritical or untruthful, say so directly and point to documented instances.
If you think the practice useless, explain why.
Nobody is helped by mindlessly casting aspersions like this.