Part of it is the British don't complain, a part is that the people who get attracted to the scene are so keen to fly they don't care.
When saying these things, people tend to take them personally, but those already inside the business are not seeing it from the outside. It is the view from the outside which determines who will walk in, and the people presently walking in just happen to not be too bothered.
You say "Any intelligent person knows that they can buy a big fancy aircraft if they want once they have a licence" but then why do so many people moan about the cost of flying? Anybody who gets that far can add-up, which means they can work out on day 1 they won't be able to afford it in the long term.