> Efficiency is about using minimum cpu cycles or minimum memory or minimum network round trip or more generically using minimum/optimum resources to get something done.
No profitable business wants to pay you for writing code that uses "a minimum" of a resource. It wants to pay you to find the right balance between resource usage, time-to-market, operating cost, code complexity and probably several other factors.
I run a small profitable business. I avoid those who doesn't care about efficiency or scalability like the plague. Laziness shouldn't be promoted.