I think you are torturing this comparison by using different meanings of amateur and professional
A professional does mean "someone who does something for money" but it also often just means "someone who is very good at something"
Similarly, amateur does mean "someone who does something out of passion without wanting/needing to be paid" but also often just means "someone who is just starting out, is new at something, and is probably not good enough to be a (paid) professional doing it"
You're talking about the "passionate" amateur and comparing it to the "getting paid" professional. I think many people talking about amateurs and professionals are mostly talking about "amateurs (newbs)" and "professionals (very experienced)"
A professional does mean "someone who does something for money" but it also often just means "someone who is very good at something"
Similarly, amateur does mean "someone who does something out of passion without wanting/needing to be paid" but also often just means "someone who is just starting out, is new at something, and is probably not good enough to be a (paid) professional doing it"
You're talking about the "passionate" amateur and comparing it to the "getting paid" professional. I think many people talking about amateurs and professionals are mostly talking about "amateurs (newbs)" and "professionals (very experienced)"