I do very little business flying, but try to do a certain % of trips to more interesting places, in between local flights for currency / sightseeing with friends.
And yes I put up with the crap too - because I enjoy flying.
It isn't just UK crap BTW; the crap is now all over Europe, in varying degrees.
Business flying is not that easy in the UK because the distances are not that great and can be mostly driven/etc in a similar time. Also the wx risk precludes formal customer visits, unless you have something very capable, are flying between airports which are ILS-equipped and have usable opening hours.