Yes, I think this is right. I have very privacy-conscious tech habits, and companies have some data on me, but probably far less than on the typical user of modern services. Some ways I protect myself:
1. Google account - I have one because it's required for Android, but I have never used Gmail, do not search from my Google account or ever log into it from my browser.
2. Facebook or any subsidiaries - never.
3. General Web browsing - reject 3rd party cookies automatically, browse with uBlock Origin, disabled JavaScript (via ScriptSafe) with selective enabling of scripts, Privacy Badger.
4. Only enter my real name online for things I explicitly need/want associated with me. Only enter my real address if actually needed for a delivery or other reason.
5. My mail client is set not to load remote images, which protects me from those 1x1 tracking images.
Many of these make the Internet a better experience, and certainly protect my privacy to a large degree. Yes, corporations have some data on me, but not much, and it's not all correct. I also don't feel I'm missing out on too much cool tech stuff, a lot of the privacy-unfriendly stuff is entirely unnecessary, for me at least, or replaced by alternatives that are not much worse.