@Robert ******
I understand your analogy, but immigration law is not like choosing beer brands.
Yes, purpose matters under Thai visa law. Retirement, volunteer, education and others each have their own rules.
But the DTV is structured differently from traditional Non-Immigrant visas.
The official description of DTV includes Thai soft power activities and working remotely. Remote work is not something people are adding later. It is written into the framework of the visa.
The restriction is clear:
• No Thai work permit
• No employment with Thai companies
• No freelance work for Thai clients
If someone performs remote work for foreign clients and is not working for Thai entities, that fits within the remote work concept of DTV.
That is not mixing and matching. It is following the published conditions.
If someone works for Thai clients, that is clearly not allowed...