That sounds exactly backwards. Google argued for net neutrality because they said it benefits everyone, not just them. And it does benefit everyone. Google doesn't have to justify things politically. At the same time, Google doesn't always do everything it can in the public interest, it sometimes does things that primarily benefit itself.
Net neutrality is something that Google can reconcile with its other political affiliations. The stuff that's required to reduce barriers to broadband deployment at the state and local level is not. Take build out requirements for example (the idea that ISPs should be forced to build service to areas where people can't afford to subscribe to it). Google can't lobby to get rid of build-out requirements generally, even though it would massively help broadband deployment. It's a meat-and-potatoes Democratic issue at the state and local level. So instead of lobbying to get rid of them, it simply sought waivers of those requirements in every Fiber city. (And even then, it got pilloried for it: https://www.huffingtonpost.com/alex-salkever-/is-google-fibe...).
