The market is performance-driven because it is task-driven. Performance as a requirement, in other words, is a byproduct of the mission. If your task requires software that someone else holds the keys to, you have no choice but to mold the rest of your environment to fit that software.

Thankfully this sort of situation is becoming less common over time, but we're not all the way done yet.

It's a big relief to know my assumptions will, eventually, be true... :-)