Comment Know how to do things others don't. (Score 1) 1086
The question is not whether you'll spend all of your time applying math. The question is whether there will come a time where strong math knowledge will help you solve problems which others cannot solve. There are any number of specialties which this applies to. Do you really need parsing abilities? Database abilities? Filesystem abilities? Network abilities? Image-processing? No, of course not - except that if you have them, you will find them helpful at unexpected times.
Unfortunately, it is usually not the case that someone will be weak in a subject AND they will still be able to identify that their skills are not up to the problem. Rather, what usually happens is they just keep hacking away, oblivious to what they're missing, spewing bugs in all directions.