What makes bad companies?

The first thing we have to come to terms with is that modern companies are for profit enterprises. This idealistic expectation that every company should have a purpose driven component is just marketing. More companies than ever are becoming investment vehicles. Your job there is to help the company achieve that goal. Anything that gets in the way could mean your job is in jeopardy. The idea of you getting hired on at a company and working there until you retire died decades ago. Today, companies are performance driven and every role has a metric component. Each employee is specific to the company's revenue goals and is required to produce. Employees of today need to be prepared to job hop their whole career.