The art of care-giving has tremendous value, it can make a life worth living and it is worth doing well.

BBC: 'See elderly as human beings'

Being seen to be doing his job, and doing it well, is worth a thousand rallies.

BBC: Sandy steals spotlight from Romney

So lobbying is definitely worth the cost to the people doing the lobbying: as The Economist notes, it might well be the most profitable thing a company spends money on.

FORBES: Why do People Lobby Politicians? Because it Pays, Just Like Bribing Them Does