Why shouldn't I get my cut, then? Why do they get to double dip? The point of the dash cam is that the data is ephemeral unless it's actually needed because something exceptional happened.
So you pay $20/month to be able to earn some crypto-coins they generate out of thin air to be used for...
If they aren't paying the equivalent of whatever the government allows you to deduct for 'wear and tear' on your vehicle then you're basically just subsidizing their data collection.
I don't even have an opinion on this, you do you.
--edit--
Oh, I saw down thread they're primarily a fleet services company and that explains a bunch. $20/month per car probably makes sense if you're outfitting an entire fleet and integrate it with your wonky in-house drivers' app which is barely fit for purpose. Yeah, I'm not bitter...
All I really have an issue with is the claim you get compensated for the time and energy you, essentially, donate to the company. If that's what you want to do with your time then by all means...
It just seems like a weird business model to me, they sell a pimped-out dash cam (fair enough) and pay some tokens (or rely on your philosophical bent) so you're willing to turn over all your data so they can repackage and sell it. To give credit where credit is due, they seem to be completely transparent with this and if the people who participate don't care then why should I?