We've also had some Adventists do work for us and all too often they share the same attitude toward work - do as little as possible while earning the maximum amount of money for the job.
It's weird - I think because they also share the same 'living as alien residents' in a world ruled by Satan ... awaiting the paradise to be restored on earth.
Adventists and JW's also share the 'congregation is your family' notion and that the people in the 'world' can't be trusted - so this can justify taking advantage of employers or business owners.