Maybe more like they don't get paid enough???! :-o Original reason for a strike i know
When I were a lad if a job didn't pay enough to your satisfaction you got a different job...
You certainly didn't hold most of the small businesses in the country to ransom like is happening at the moment. It's not the Royal Mail who are suffering, it's the people who rely on them.
In this case though it's not actually pay that's the main problem, it's that the Royal Mail workers think they're working on a pay-per-task basis, whereas the directors think they're working on a pay-per-hour basis like everybody else in the country.
