> it simply marks parts where the compiler ignores parts of its rule set

This is a common misconception, in a literal interpretation. It doesn't invalidate your point, but since people get the wrong impression: unsafe doesn't turn off any of the checks the Rust compiler does.

It allows you to perform 5 additional operations, and that's it. Using those operations wrong is what breaks the safety promises of the language. As an example, you could dereference a raw pointer and tell the Rust compiler it lives forever, when it's really a pointer to an object that's about to be freed.