I agree with you: Ritchie's contributions, because they're at the core of so many things we use (including iOS and OSX) are more influential than Jobs' contributions (which are pretty darn influential).

However, please re-read the headline you've got an issue with: "How Steve Jobs' Love of Simplicity Fueled A Design Revolution."

Does the article claim that Jobs' creations were the simplest ever? Or that his simplicity trumped that of Ritchie? No.

Also note that the article is clearly talking about a design revolution. Did Ritchie spark a design revolution? No.

(Well, he did, in operating system design. But that's really not the sense of the word "design" the article is using...)

So I don't understand what your problem is, other than the fact that you don't like Jobs' contributions a great deal. The claims made by the article are utterly orthogonal to the importance of Ritchie's work!