It is not the only thing that can, but then again not all things have the same multiplication coefficient.

Clearly being a great writer, orator, or doctor have high coefficients. Being a great plumber probably has a lower coefficient. Being a great doorman might be still lower on the scale. (I'm not saying there's anything wrong with being a doorman, just taking it as an example of a skill with a low change-the-world coefficient)

I think all things being equal, it's better to learn things with a high coefficient. Of course personal enjoyment is important too, so when I say "everyone should learn to code" I'm of course not advocating forcing people to learn to code against their will…