"Ummm, nooooo, I don't think so. The Beretta safety disconnects the trigger. A safety is very useful when drawing or holstering the weapon. That is the most common time an ND happens. Rriggers can also be snagged by brush when walking through a forest or swamp.
Errr, yes. Or do you find yourself pulling on a trigger that has been disconnected (ah la the Beretta you mentioned)or mechanically blocked often? As for the rest of your statement, drawing or holstering with your finger in the trigger will get you thrown off the ranges I frequent.
It is not a matter of intent, but one of accident. A finger on the trigger by accident happens, and can happen to anyone. I have heard of holstering a weapon having the hammer strap get caught in the trigger and an ND happening. Hence, a safety is good thing, just ask all the Glock accident victims.