Here is an example of why large companies like regulation; it drives their smaller competitors out of business. The ability to get regulations like this is why rich guys becomes socialist fascists; they get the government to lock them into position where they no longer have to work hard to get business, and they can punish their competitors. This example is from California, of course.

http://hotair.com/archives/2009/01/29/new-california-pump-rules-squeezes-small-station-owners-out/