Earlier quoted context omitted.
You aren't writing checks. Send a Congressman $1000 (that's really all it takes to get their attention) and you'll be amazed how responsive they will come. Senators are a little more expensive, but still reasonably priced at $2-5k. Presidential candidates are in the low five digits.
Tech workers probably want to put that $1,000 into their homes, or into their kid's savings, or pay down some of that student loan debt. I'm a tech worker and I don't honestly see a near-term future where I would throw $2,000 at a senator to talk to them about, say, net neutrality. I've got all kinds of things I'm saving for! My boat isn't going to drain me of my earnings by itself!
If you want real political influence of the sort that will actually let you move the needle on something like net neutrality then you need to be writing much bigger checks. $1k will buy you half an hour on the phone will a congressman who will pretend to listen to you. But to actually influence policy you need budgets in the 6-7 digits because you have to repeat the process across many dozens of congressmen and senators.