It's not a matter of "hardness" it's a matter of system interconnectedness. 10 programmers working for 10 hours creates far less value than 1 programmer working

It's not a matter of "hardness" it's a matter of system interconnectedness. 10 programmers working for 10 hours creates far less value than 1 programmer working for 100, because the whole system is interconnected and they need to spend a lot of time making sure their parts line up with the rest. 10 artist working for 10 hours might be worth close to 1 artist working for 100 hours If the work is "make an area with trees, roads, and wildlife" There are bits on the island that need to connect, like the literal roads. Conceptually the mission content needs to line up with the graphical content. But it's not as interconnected as a chunk of software is, and the marginal returns don't decrease as fast.