alt Hacker NewsYour argument has many, many leaps but I infer your point.
The lack of attention does reduce the overall correctness of the system.
But, and unfortunately, in most situations the loss of correctness is more than made up for by the speed gains.
Unless you're building software that could kill someone, it's hard to reject the improved speed. The cost of delay is usually more damaging than the cost of incorrectness.
In real business, all important software is capable of killing someone or cause monetary loss through incorrectness or loss of functionality due to performance failures.
If that doesn’t apply, you are just writing toy apps or front ends that are of no real significance, so yes you could carry on with incorrect code in those cases, but it’s not much of a career either.