Herd immunity. If only sensitive data uses HTTPS, all HTTPS use is suspicious. If everything is HTTPS, the fact something uses HTTPS no longer makes it suspicio

Herd immunity. If only sensitive data uses HTTPS, all HTTPS use is suspicious. If everything is HTTPS, the fact something uses HTTPS no longer makes it suspicious/interesting. It also makes policies banning access to HTTPS websites (i.e. clumsy traffic control) unfeasible.