It's just that 'class system' exists in society and it's a different kind of animal, that phrase carries a lot of negative political and socio-economical baggag

It's just that 'class system' exists in society and it's a different kind of animal, that phrase carries a lot of negative political and socio-economical baggage, negativity such as 'monarchs' and 'peasants' and what have you. In the corporate world however it's just a chain of command, it is used to distill order to some extent and typically is claimable by those who succeed.