[lmm]

Division of labour tends to increase efficiency. Do you really want an author spending hours reading LaTeX tutorials, or do you want them to get on with their personal specialty and let a typesetting specialist do the typesetting? Either way the ultimate cost is going to be similar.

[dragandj]

But the problem is that their personal specialty is not valued much, so if they want bread on their table they better augment it with a complementary specialty.