It's all a matter of definitions. For example, Google doesn't sell user data to third parties, does that make Google respect user privacy a lot better than other ad companies? Sure yes. But Google often takes user data from one product and uses it for targeting in a different product, and it doesn't respect user privacy as much as a non-ad company.
Ad companies generally don't. Data brokers will set user data, but advertisement based companies do not sell user data.
> does that make Google respect user privacy a lot better than other ad companies?
"better" is the operative word in that statement. Just because Google spies on me and is slightly less worse about how they use that data, does not mean that they respect my privacy.
I mean, I haven't audited their systems and haven't seen any reports from independent auditors, but at least they are making direct statements about privacy that the other ad networks aren't.