I feel quite comfortable with ProtonMail controlling my email, BitWarden controlling my passwords, and Tarsnap controlling my backups because they all have a mo

I feel quite comfortable with ProtonMail controlling my email, BitWarden controlling my passwords, and Tarsnap controlling my backups because they all have a monetary interest in not selling my data because they're competing with "free" products. You shouldn't trust Tarsnap simply because it has a financial interest in protecting your data. You never know when someone will come along with more money. You should trust Tarsnap because it is cryptographically incapable of revealing your data.