If you look at which companies can actually make things happen in DC[1], it's the ones that are regulated (the reasons for this should be obvious with some thought). Those are not Silicon Valley companies, by and large, but telecommunications firms like AT&T and VZ.
And it's those telecommunications firms that have long-standing surveillance "partnerships" with the NSA, according to leaked Snowden docs, which I wrote about last year here: http://www.cnet.com/news/surveillance-partnership-between-ns...
Here's one reason those regulated telecom companies may not be eager to see reform happen:
"ATT, Verizon, Sprint Are Paid Cash By NSA For Your Private Communications" http://www.forbes.com/sites/robertlenzner/2013/09/23/attveri...
[1] AT&T/VZ/Comcast rolled Google/eBay/etc. on Net neutrality in Congress. Twice. Silicon Valley-backed NN bills were defeated in both the House and the Senate. And heck, Silicon Valley can't even get a permanent R&D tax credit passed. They've been trying forever to get a ECPA reform passed (this has failed). DMCA reform? Over a decade, nothing. They should be heavyweights or superheavyweights but they're bantamweights instead.