You sound very confident in your estimation of other peoples' motivations and skills. Do you imagine AWS solution architects coming to you directly with "you should pay for this service because it makes more money for AWS"?

I've done the AWS solutions architect associate level cert and I can tell you first-hand experience that in order to pass the exam you need to memorize a lot of AWS propaganda that was written primarily to optimize AWS profit, not to optimize customer satisfaction. How many of those solution architects take those materials with a grain of salt vs how many of them genuinely believe that crap, I don't know.