This may be a controversial claim, but in programming often style is a major part of substance. Even in the event your program is correct if it's stylistic written in such a way that it makes it easier to break in future edits then it's a lower quality program then it could have been if written with better style. In my view the quality of a developer is to a large degree expressed by the style of their code.

(Edit: This is not to say that there can't be multiple good stylistic options, just more that the bad ones by far outnumber the good ones and at the end of the day it does matter how your code looks if you plan on supporting it for a long time)