I refuse to work for companies I don't agree with, which hurts me financially. I will never work at a FAANG company, for example, or most of the other heavy weights that are funny l functionally similar.
For things without a clearly superior alternative, I have a list of business opportunities. For example, smart devices are becoming popular, and they're horrendous for privacy. That means there's a market for devices that don't spy on you, and the open source options after inconvenient enough that a packaged deal is attractive, even if it could be DIY. For example, I think there's room for a Ring competitor that is E2E encrypted, provided the app is well designed and the device is unobtrusive. Privacy respecting services and devices are unlikely to take over the alternatives, but merely existing puts pressure on the major players to act better.