When you're invested in the success of the business above all else, and you make that known, you'll carve out a position where you're valued.
Not because you went on a "carving out your importance" mission, but because your energy goes into your work, and the details and care for the long term business objectives. Also... you can then enjoy yourself more, which opens creativity which opens innovation. Sometimes this might mean disagreeing with managers or working on stuff nobody really knows you're working on right now.
> "So if you want to get something technical done in a tech company, you ought to wait for the appropriate wave"
No. That doesn't work. You have to start building it. Don't wait.