This is the foundation of a lot of John Rawls’ philosophy... he calls it the ‘original position’ or the ‘veil of ignorance’... the idea is to try to imagine, when thinking about social systems, that you have no idea which person you will be in that system. You might be the richest person or the poorest person, you might have your side in power or your opponents side in power.

If you had no idea who is filling what role, would you agree to the system proposed?

What if you are trying to build a system you would be willing to fill any role in, but your opponent knows the current one is very lopsided and they already have a favorable role?

I cut -- you choose ?

I like it ;) But it will probably never happen.

Would you hand the wheel over to your enemies? Agriculture? Writing?

Probably not, if they are assured to remain your enemies. Wars have almost always been decided on technological capabilities alone, with a few counter-examples. You asked an interesting question, if only a bit narrow.

Going further, most technologies can be directly used for ill.