There's a difference between clean execution and correct execution.

Imagine a 2x2: clean vs messy execution, and correct vs incorrect execution.

"correct" here means "is effective at achieving the stated goals".

It's easier to see the cleanliness than the correctness from a distance.

Clean execution is also the only way to execute something consistently at scale.

So organizations tend to naturally select for clean execution.

The real world is surprising, messy, and constantly changing, which means that the correct execution is often messy, too.

If it weren't, it wouldn't be able to stay viable among the mess.

So in practice orgs tend to optimize for cleanness of execution, but at the expense of correctness.