Amazon go boom. Problem with dog eat dog at the workplace, the rabid dogs last the longest only because they are better at taking credit for the work of others whilst blaming others for all the mistakes. This burden of corruption work practices in order to survive eventually kills the company. Decent people do not want to work there, only taking the job if they are desperate and leaving as possible there after.
Think about staff turnover, each one gone is now an ex-employee and most definately an ex-customer, keep it up and you have very few customers left because one thing disgruntled customers do is create more ex-customers.