One cannot avoid seeing the huge amount of work being done by people around the world to develop packages, classes, and even projects which dwarf LaTeX in terms of software complexity, and hence, in terms of time.
Time is money. Who pays for these people's time? Some are volunteers, sure. Some are scholars, some work for publishing houses, and others may be labeled as zealot geniuses.
Concretely, the question is:
- What are the major projects being developed these days? (LaTeX3? TikZ? Bidi? tcolorbox? Did I miss anything?)
- How are these projects being funded? (Donations? Scholarly organizations?)