Besides catharsis against the omnipresent surveillance state, it gets you fewer police-accessible mobile cameras (making other actions safer) and a greater reluctance on the part of companies to continue investing in this. It's also funny and good pr, because people hate these things

Safer roads

The US government is a failing and failed system. Un-ironically hurting an oligarch like Google's bottom line would do more for influencing govt. policy.

In the USA, a corporation losing potential profits is the closest we'll get to a peoples democracy like China that doesn't have these issues by actually being democratic.