The funny thing is you absolutely can do things which improve both speed and quality at the same time (basic good engineering), but they're like 3 or 4 orders of effect removed from those outcomes and impossible to do when you have someone breathing down your neck asking "does this make us go faster" at every step of the way.
Also "our velocity is 3x higher than it would be in the imaginary invisible universe where we made worse decisions 6 months ago" is impossible to measure, whereas "we cut a bunch of corners and shipped a piece of garbage on an arbitrary deadline" is very measurable.
Indeed. Like the brakes on a car. They enable speed and quality driving