Because it's easily understood I will use medieval ranks:
- Royalty: In corporations this is the CEO, CFO, directors etc. The REALLY senior people. They do no work and seldom interact with people much below them. They are the face and head of the organization. They control which direction it's going. In the Church this is the pope, cardinals and curia. In the military this is generals.
- Lords: In business these are VPs. Their main attribute is that they control budgets. They do little real work but do a lot of posturing and symbolic gestures. In the Church these are diocesan bishops. In the military these are lieutenants through colonels.
- Knights: In business these are directors or something like that. They are the real bastions of knowledge and expertise. They can be influential but have limited real power. In the Church these are priests and nuns. They do a lot of work and direct real activity. In the military these are staff NCOs. Some of them occasionally become lords.
- Peasants: These are the more interchangeable people under the knights. They have limited experience and expertise. They are paid less and are essentially the masses. In the military these are all enlisted under staff NCO and in the Church it's essentially the laity. Peasants can become knights by hard work and intelligence.
These structures are found everywhere in human organizations.