This is really redicilous...
So you think that the mayor part of Europeans are messy
The major part of my working days are also in suit and tie and i need to refill the car then to... It's exactly the same as gasoline and all depends on the cleaness of the pump, but that depends on the station or not...
It is correct that the odour of diesel isn't nice (i like the gasoline smell) but as long as you don't spill, there shouldn't be an issue.
Without considering money or fuel economy I would even prefer an X5 3.0sd over an 4.8i.