It's a lovely gesture, and an important sign of solidarity; however, it'a merely that, just a gesture. I hope that SV and the tech industry leverages its wealth and technical legal capabilities to fight these sorts of actions in court, unlike their responses to privacy intrusions by the federal government, British intelligence, and other foreign groups.
We focus on decision makers because that's the easiest point of observation. That we are much more limited in observing the chain of gestures and other non-decisive actions that influence decisions doesn't mean that gestures are nothing. More importantly, gestures are a way to be engaged and increase engagement, as you gradually position yourself to be in the right place at the right time to make impact. If everyone waited until they were established/rich enough before they acted at all on their convictions...well, there's a reason why "The establishment" is used as a perjorative.
And as an obvious example, our president-elect made many gestures that he'll be unlikely to fulfill. But that was signal enough to get him to be where he is.