The fallacy of capitalism causes ‘evil’ companies

Let me start with definition of a company in the context I mean;

From merriam-webster;

3b : an association of persons for carrying on a commercial or industrial enterprise

To this end, a two man plumbing team or a huge multi-national corporation such as coca-cola can be defined as companies.

In today’s world, companies such as Goldman Sachs or Monsanto are considered ‘evil’.  But why?  What makes them ‘evil’?