southside bobby makes a good point about employment and job opportunities. They certainly need to be put into the equation along with profits and dividends. Here again, I think volume is important. Large numbers of Ryanair and Easyjet flights may not bring in a fortune in aircraft landing and parking fees but they do mean jobs for handling agents and other providers, and in the bars, restaurants and shops that are available in a busy airport. Car parking requirements from high volume of passengers produce financial benefits and jobs, although I note the environmental concerns from higher use of private cars.
Inbound tourism from those cheaper flights not only help the local economies but is a source of job creation.
So yes, I agree MAN & MAG's responsibility and opportunities encompass far more than simply maximising profits and dividends for its shareholders, although those dividends can of course be spent wisely for the benefit of the local community.