Would it be relevant in the specific case?
It would be presented to the jury as evidence that he was not as concerned with the safety of the ‘thug’ he killed or injured as he should have been.
It would probably work with many juries too, if there was not plenty of exculpatory evidence.
And the big money involved in unlawful death suits... well, he drew a target on himself for big money lawyers with that statement.
Though it is the most helpful point of view of what happened.