I think you're right OP.
I did read somewhere that narcissism is a common trait of CEOs (or something along those lines)
I think it's because you've correctly identified that they don't care if they trample all over others to get on. They have no guilt over lying, sneaking and being manipulative.
It must be great to be that carefree ! But, I think to myself, do I want to be a CEO? I don't. Do I value career over everything else in my life ? No, definitely not. They probably "win" at business aspects of life, but possibly lose in other areas, like friendship, romance , hobbies.
I think we (particularly girls) of a certain generation were very much taught to be people pleasers and "nice" and "polite" "don't answer back" and the very lovely "little girls should be seen and not heard " ....it doesn't help does it ?
My son particularly is a very caring and selfless boy, will often go along with what others want and put his needs lesser. I've just taught him "yes, do be kind and thoughtful. But always keep the balance, don't ever put other people's needs first at the detriment of your own "
Sadly, I think "nice" people are respected less ultimately.