Vegan's don't "own" "pets", they have wards/non-human companions.
Most vegans take car of rescues, buying from mills is unethical / supporting animal abuse.
No I would never "buy" a "Pet" to be "Owned", You can't own other beings. They would be a rescue and they would be a non-human companion / ward.
As for ego, what is more egotistical than thinking someone needs to die just to keep another person alive?
Nothing bigger than carnie's ego when it comes to thinking its okay to kill others just so they can have taste pleasure.
Good thing Billy can't read cursive because they don't teach it in schools anymore.