Oh they exist alright, I have met them. They are bearded old men that rule the kingdom of Oracle in a dusty room that smells of stale coffee. If you ask them if you may please have a table they respond angrily "NO, you may NOT have a table!"
The joke is:
Q: What is the difference between a DBA and a terrorist? A: You can negotiate with a terrorist.
After being a DBA, I moved into security, so I could tell people NO with even less consideration and more cruelty.
Grumpy old men complaining no one in the company is able to write good enough queries.
We got rid of them when we migrated from Oracle to AWS Aurora.