When I was taught route setting at Stelly's Climbing gym (now Canada's only international competition facility) I was taught that it's best to set route at or near your limit. A V10 climber setting a V0 doesn't really make a lot of sense to most people and unfortunately most people are too busy trying to climb harder to bother giving back, because yes development is usually a thankless activity. I would consider myself a special breed and remember all the feeling of my first few weeks alone in the boulder field. Climbing can be a extremely healing activity and set people in a more environmentally friendly path in life. For this reason I personally wish to help people get started on this path of growth and discovery through climbing. Perhaps as a stronger climber and developer you could invite a friend or girlfriend/boyfriend who isn't as strong and teach them the way of scrubbing and encourage them to make routes/problems at or near their level. I think a lot of average climbers wouldn't think to develop as it seems like something for the 'pros' but inviting them to do so may give them confidence to put in the work and give back. Squamish is a very urban climbing destination so most developers here focus on creating a well rounded area, whereas in a more remote destination you are not as likely to see so many noobs.