More than any other company, Jobs' Apple has been relentlessly visionary. Many tech companies did (and still do) write software. Apple, on the other hand, designs and builds products - software is an implementation detail. Apple's core is software as an end, not as a means.
Fifty years from now, I believe that programmer will be one of those hilarious dated occupations like typist or milkman. Asking if someone has wifi will be like asking if they're on the grid, and computers (and computing) will be so ubiquitous that they become invisible.
I don't think Steve Jobs contributed to computing any more than Martin Luther King contributed to literature. His legacy isn't in his tools, it's in how he used those tools to shape the world as he wanted.