All officers are employees, but not all employees are officers. C-suite employees are all officers at least. I’m not sure how far below that it expands.
I'm not sure that's always or even often true, despite the 'O' in the name. You're generally mostly talking about the CEO plus directors.
I mean, nothing stops you from making it into job requirements in your company, but, apparently, this is not a requirement at Tesla...
What, nothing stops you making director-style fiduciary responsibility a job requirement for normal employees in your company? I'd, er, check with a lawyer before you try that one.