Regulation is exactly what large corporations want. Regulation prevents competition from ever getting started.
What's an extra £30 million a year for regulatory compliance to someone like FB, or Google, or any billion dollar corp? It's literally zero. Nothing at all. The (insignificant) cost of doing business.
For a startup? It's certain death right at the idea stage...
I would put money on FB actually helping government draft regulations _against_ FB themselves knowing that they won't be financially affected by them and that they will help kill any potential competition from ever getting started.