The same would apply for any number of hosts. Hetzner/OVH are cheap, but as your own numbers show the location price gap is more than sufficient to cover the costs of servers.
In fact you can colocate with Hetzner too, and you'd get a similar price gap - the lower cost of real-estate is a large part of the reason why they can be as cheap as they are.
Data centre operations is a real estate play - to the point that at least one UK data centre operator is owned by a real estate investment company.
Where I feel that data has become a commodity in that I can sell your username and email for a few pence, I would rather prefer to have my own hardware in my own possession and that any request of it has to go to me, nor some server provider.