Did you know him or ever speak with him in person?
I have while working in Apple in a critical engineering group, and the negatives you keep citing seem to have died off in his 20s, at which time they indelibly (deservedly) tainted public perception. the post NeXT 'return' seemed very very different than what you describe, from in person experience.
I really wish that there was an equivalent to the Mac's
https://folklore.org/0-index.html
for the NeXT stage of things --- Luciano Dadda's recent book _Inside NeXT_ is nice for covering at least the hardware, but just not quite the same w/o the personal anecdotes