Please, show me the bribery and corruption that's creating these political hurdles. Otherwise, that's a strong accusation to be making without proof. If we're talking about good old fashioned lobbying, however, then the fact is that the internet companies have more than enough money to overwhelm the cable companies' lobbying efforts. Lobbyists are up for the highest bidder, after all. Yes, small companies can't afford it, but anyone with the money to realistically build the infrastructure in the first place can. Certainly, the companies with the most at stake (Google, Facebook, Netflix) can. It makes no sense to invoke money and lobbying while ignoring the fact of who has the deepest pockets in this game. Remember, Google is more profitable than Comcast and TWV combined, and has double the profit margin. Facebook's profits are about 2/3 as much as TWC.
The regulatory hurdles that Google is demanding relief from are (largely) not the result of lobbying. They're the result of the dysfunction of municipal politics. Right now, NYC's mayor is attacking Verizon because poor people can't afford FIOS (at $75/month). He's hired a civil rights lawyer to get into the issue. Is it any wonder companies aren't interested in building fiber? Is this the result of lobbying (or corruption and bribes) or predictable political forces?
At bottom, none of the screeds on this subject address the simple fact: the internet companies aren't rushing to build fiber, or lobbying to get permission to build fiber, or publicly demanding deregulation so they can build fiber. They're trying to get Comcast, Verizon, etc, to build fiber. To this day, Google positions Google Fiber as an effort to shame the ISPs, not a worthwhile business venture standing alone. What does that tell you about the monetary incentives at play?