The virtues and vices of any large group of people sort of coalesce into a big gestalt "culture." Companies hire for very specific virtues, related to competenc

The virtues and vices of any large group of people sort of coalesce into a big gestalt "culture." Companies hire for very specific virtues, related to competence and effectiveness, that they then amplify or dampen with metrics and training and so on. Meanwhile, society and human nature have some baseline of pressures acting on them that amplify or dampen different sets of virtues and vices. Among these are a certain level of greed and cutthroatedness. Companies rarely actively select against cupidity or avarice, and insofar as they do it's usually fine as long as it flows downward and enriches the company overall. So, as the company scales up it scales up in its capacity for evil too. Though it's not as if "small" can't be evil as well. Small businesses are still part of a network of small businesses and subject to market forces that also select for and against different behaviors, many of which involve screwing over their workers.