Any holster, at any point, is going to violate gun safety rules. I mean, as long as you carry with one in the chamber, which is a practice known as "the only reasonable way to carry a gun", and a practice I highly encourage.
Think about a OWB holster at 3 o clock on your waist (if you're right handed): Have you ever walked on the upper floor of a traditionally constructed house? Where people on the 1st floor? Do you think a sheet of 3/4" plywood sheathing and 1/2" of drywall would stop a round from going downstairs if your gun went off? It won't. You know that.
The true morality and justice of AIWB is that it says "I'm the sort of person who is SO dedicated to not accidentally discharging my firearms, that I'll put my own groin on the line for it".
And that's the Warrior Poet Way.