In reply to Tom Ripley Mountain Guide:
Here are some circumstances where I might help pay for someone else's climbing trip:
As an investment in the cost of making a film, where I would get part of the profits.
If I was on the trip myself, and if I was rich, and if my mate wanted to come but he was poor.
If I was running a trip and I needed someone to do a job (lead climber and rope fixer up the technical sections, for example).
But by and large, part of the aesthetics or ethics is that you do it yourself. And if you are poor, you find other ways of doing it.
Myself, I don't have what people call a job - middle aged bloke whose employer went bankrupt, struggling to find work in these times - a common enough story these days.
So I do freelance work, leading treks for adventure holiday companies that advertise that their trips are led by "British guides." That way someone else pays me to go to interesting places, and by carefully selecting the treks I got to carry out a recce at someone else's expense. This year, the plan is to get paid to lead a trek, wave cheerio at the airport, and then head off back to the hills to attempt some new routes.
My point is: there are other ways to get to distant mountains than by paying for the air fare yourself.
Have you thought about courier work to get the travel paid for? Work for a travel agent to get cheap flights? Work for a bank that does business in Delhi or construction work in Lhasa or geological surveys in Greenland, and get a trip out there.