Steve is concerned with the esthetics of the PC board https://www.folklore.org/PC_Board_Esthetics.html
Wow, the interesting part there—at least for anyone who already knows the cabinet story—is how it ends: "Well, that was a difficult part to layout because of the memory bus.", Burrell responded. "If we change it, it might not work as well electrically". "OK, I'll tell you what," said Steve. "Let's do another layout to make the board prettier, but if it doesn't work as well, we'll change it back." So we invested anoth…
More cynically, these stories are also a way for Steve Jobs, who lacks technical skill but is still the boss of the technical geniouses, carves out a niche for himself where he is the undisputed leader and no oen can challenge him: his own subjective sense of aesthetic.