Steve Jobs deserves a great deal of respect but I do think you're forgetting the less great parts. They had lackluster updates, products which went years too long without a meaningful update (e.g. all laptops for the half decade prior to the Intel switch), the iTunes UI started getting worse in every release around the early 2000s, until a few years ago their attitude about security was borderline negligence, they shamelessly ignored long-standing customers who kept them alive through the dark years[1], and every cloud service they offered until the last year or two was a user-hostile disaster.

The key, of course, is that a few big wins make up for a lot of that but the other side of that lesson is that most people will do better with consistent solid execution rather than spreading themselves too thin trying for a huge win. Apple could easily have been Palm or SGI if one of those long-shots hadn't paid off.

1. Our Apple higher-ed rep used to respond to critical bug reports by asking how many Macs we couldn't purchase due to that bug.