When it comes to extra curriculars, I think how important they are will vary depending on what you studied in college. From my experience in job hunting, extra curriculars are just nice because the work you do in them can be used in your professional portfolio, or at least show recruiters if you have some form of experience working in teams with people or have leadership skills in those teams.
But having a job that you worked full time while you were at school will also be very beneficial exiting college because you're right. Employers like to see how people can handle time-management. So being able to have a full time job and excel in school is definitely a good thing to have.
Best of Luck!