It also comes down to supervision. I know for a fact that with this handling agent (and others!) you can get away with "poor procedure" (I won't go as far as using the term "cutting corners") on a regular basis, but it will go unchallenged.
With many of these incidents there are often numerous "warning signs" and "near misses" which, if challenged, could have prevented the eventual accident. But hey, pro-active supervision costs money, so it just doesn't happen.
£50,000 per year for a couple of reasonable ramp supervisors is now looking like a bargain!!