Guys I have worked for several courier companies and pallet network companies. What you must realise is nobody in these companies gives a monkeys about your parcels. You can stick Fragile stickers all over them, it won`t make a bit of difference.
The guys in the warehouse get crap money and a lot of them are agency guys working for min wage. The drivers are under pressure to get the drops delivered and usually, get crap money. It is just the way the industry is. Lots of pressure, very little cash.