In theory they could charge money for their services instead and not capitalize on user data. I would pay them for this if I was given the option and already do so where possible, but it would seem that I am by no means representative.
You could not pay them enough for that. The mere presence of a pay to opt out feature devalues all the other data they collect on people who don't pay.
It's the number one law of inescapable advertising. The more people are willing to pay to avoid advertisement, the more lucrative advertising to them is.