Tracking is not synonymous with ads. Advertising was big business back when you had to just put a jingle on the airwaves or paint a billboard and trust that the right demographic would happen on it. It is plenty possible display ads and make money from them without invasive tracking, for example duck-duck-go does so. On the other hand if you do not fight tracking, paying for the service is no defense, they will just double-rip every time, triple dip if they think they can slot ads in.