Depends on the context. For me, there's no difference in the beginning motions of drawing from strong side vs compliance of reaching for my wallet. I've demonstrated with a blue gun multiple times that it's very difficult to tell if my hand is on my wallet or has established a firing grip. Being marched into the back of the store with a gunman behind you? AIWB is much easier to conceal.
I also suspect, but can't prove, crooks are more leery of guns going toward the center line because that's where they and their thug buddies often carry. See: various headlines of people shooting themselves in the crank due to their holster-less appendix carry. The only valuables people ever crotch carry is firearms or dope they don't want cops finding.
In the context of disguised draws vs a drawn gun, strong side carry and pocket carry have done very well in the real world so what ever giveaways are being telegraphed aren't being picked up on by the bad guys.