I guess the problem here is that if there were some final check by the security personnel 90% of the posters on here would be up in arms about what a waste of time it all is(!)
I would not have any issue at all if there were some quick way of evidencing you have collected the right bag, but short of showing someone the tag on the bag against the baggage receipt given at check in I can't see how to do it without adding to the hassle of baggage reclaim.