I assume that's meant to be funny, but I am simply trying to underline that just because NATS classifies a particular type of activity at the bottom of it's heap, and some may think that "sightseeing" is a marginal activity of no consequence, it ain't necessarily so.
This is the charity involved. It helps people on the street, who may be there because of mental illness, despair or their families have disowned them, by giving them food, clothes, shelter, education and opportunity.
Yes, I raise a fair bit of money for them with these flights, yes that money is very well used and yes, they may well be the losers.