It is simply 10x more valuable. And that depends on the organisation you work for, the state of the code base and so on.
Look at it this way - sports stars are regularly 10x, 100x more valuable to their team management than A.N.Other professional player. Take football (soccer) - Ronaldo is a waaaay better player than I am easily 100x, but take the newest signing in league 3 or whatever it is - can Ronaldo run 10x as much, is he 10x as likely to put in a penalty or a free kick? No. it's probably not even a question of twice as likely - it's percentages better.
It's just that those percentages matter when the cup is on the line. I am sure that Baseball statistics probably show this - the spread from top of the league to bottom is unlikely to be 10x more runs scored
So more and more it's worth remembering that the value provided to an organisation (and remember that's what you can charge for) is based not on your intrinsic qualities but what you can do for them in their current state.