How do they account for users like me, though? Or are we so few that they don't care?

If I see enough adverts for something I mentally add it to a list of things I'll never use.

For example I use Windscribe, because when I needed a VPN I did some research on what would be best for me, and I automatically disqualified Nordvpn because of how prevalent their ads are. I've never seen a Windscribe advert, but when I looked for the product, there they were.

You do need some amount of marketing otherwise nobody will know your product exists at all, but forcing ads into people's faces in uncouth ways is scummy (e.g. animated adverts on pages when I'm trying to read the page content, I can't read it until I get rid of the ad, it hard locks my brain's focus), that's where I usually draw the line.