“Kill or be killed” motto

Mike Isaac’s Super Pumped (p. 169) reports Uber’s “champion’s mindset” of “Kill or be killed.”  Isaac explains:

[I]f you weren’t watching your back you might be betrayed by a colleague looking to get ahead.  Success, many believed, only came at the expense of others.

Isaac continues (p. 267) that an employee “recalled a director boasting about withholding information from one executive to curry favor with another (and it worked.”  His conclusion: “Backstabbing was not only endorsed, but encouraged.”