Strongly depends on the company. I have done this exact thing several times when something was critical and it was actually noted as one of the reasons they told me as to why I got my last promotion. Something like “staying focused on the issue at hand while respectfully managing the pushback from the business while still moving ahead with the urgent fix.”

Basically I told the business to shove it in a very polite way and fixed the issue.

You suckers! Everyday I travel through time. I have been keeping a steady pace of 24 hours per day for decades!