Everyone has a good opinion. Can not tell whose wrong or right. I like to talk with them after i built good relationships with my favorite masseurs. Let’s analyze it little bit. 1, it’s not true they didn’t pay taxes. They have to do If want a good life when they retired. The job only short time when they are young. Nobody wants to get massage from old people right? 2, everyone need food . Shelters, transportation that also need money, not free. This is not a simple maths like you did. Spa also has high season and low season. Sometimes no client. Someone figure out they can get 720 for one week. So 1day 100, 1hr only 13 if 8 hrs a day. I don’t think this is good and enough profit for anyone. 3, some people paid tips according to 20%. I think it doesn’t work on this. For example restaurant staff severs many tables and costumers. But masseur only servers a single person. That’s definitely different. 4, most clients want great massage and more extra. Maybe the client could get great experience at the first time. But when they knew the client didn’t pay for extra. They won’t deliver more extra . Remember,no free meals at all. To be a smart man, you want happy, why not make both you and masseurs happy ? But bad service and greedy masseur those excluded in the situation. You could complain and refuse to tip definitely. Anyway treat others well you will be treated well.