Before the green brigade get on their high horse, in my experience, I've yet to meet anyone who deliberately wastes fuel to get back at RS or PB. Personally I don't believe it happens.
Where the goodwill comes into play is when the company asks for your help to for example work a day off. As the company seems to care less and less for it's employees, so there will be less and less help in return. Surely a no brainier, but clearly not in the accounting equation.
Cheers
Splat