It depends. Learning Racket and the design methodology taught by Felleisen, et al. could help you become a better programmer in general, and thus significantly further your career.
Re:Why Go? Use Racket
by vvpan on Thursday March 12, 2015 @04:38PM
(#9193715)
Sure, I agree. But the impact is much less direct. Most interviews go like this: "Have you worked with Angular?". And you just don't really need to be a very good programmer to have a well-paying job.
How to Design Programs, Second Edition
http://www.ccs.neu.edu/home/matthias/HtDP2e/