Well, ignoring the fact that this image is overly biased (without Jobs we probably won't have object oriented programming/proportional fonts/computer mouse etc.)
Ahem, the mouse was invented at the same place where the graphical user interface was invented: Xerox Parc. You know, the place where Steve Jobs got "his" great ideas from.
The Xerox Star was the first product with a mouse and a graphical user interface. Then came the original Mac. Neither ever had any significant market share. Like it or not, it were the Commodore Amiga, the Atari ST and then the Windows PC which eventually brought computer mice and GUIs to the mass market. Ultimately, you have to thank Gates, not Jobs, that computers are now relatively easy to use. Gates made that stuff affordable for everybody. Jobs only sold expensive designer products to the wealthy.
Also, Object-Oriented programming was around quite a while before Steve Jobs and Apple came around. Again: Xerox Parc. Alan Kay is the name that should ring a bell, because Jobs loved to quote him: "The best way to predict the future is to invent it." The object-oriented programming language we are talking about here is called Smalltalk, the mother hen of OOP.
And in case you didn't know it, object-oriented programming in Steve Jobs Land was introduced rather late with Objective-C in NeXTstep. The original Mac toolbox targeted the language Pascal and did not use an OO paradigm.
You give Jobs a lot of undeserved credit. Give him credit for fabulous design and taste. But as he said so himself by quoting Picasso: "Good artists copy, great artists steal. And we have always been shameless about stealing". Jobs was not the mother of all invention. But he was extraordinarily great at taking somebody else's invention, design and technology and turn it into some beautiful (but very restricted and limited) product.
As for Dennis Ritchie: Man, Unix is the foundation of the Internet and most mobile phones today (including Android AND iOS). I never liked that curly braces language called C, but that does not change the fact that it is the most important and most widely used system language in the known universe. (And I mean C, not C++ or Objective-C.)
Kernighan and Ritchie are the giants on whose shoulders an entire industry stands. And unlike El Jobso, I never heard either of the two complain that somebody stole their ideas. You know, without Unix, there would never have been NeXTstep or OS X. Or Linux. Or FreeBSD. Or iOS. Or Android. Or Solaris.