the thing with a masters degree is that it can make you more 'elite' in society. sadly, that's how it can work in the long run. but if you're truly devoted to making a difference in your own life and wanting to become more well rounded, I see nothing wrong with going as far as graduating with a masters. you will get paid more, plus you will probably be much happier knowing that your capablities are standing out with your very own potentials for success. things is, you are more of a leader figure to those who have gotten less schooling than you have, as far as no college degree, bachelors, masters. PHD is a diff. story, but you will seriously stand out with a masters, even if you may or may not use the extra studies in your immediate job.
so you're talking about hardcore scheduling maintenance. my friend did a masters in computer science at the U of M and still got a multimillion dollar statistics company up and running, and even had a hardware company before he sold it and started the statistics business. has a family of several kids and holds important positions in other various organizations. best off all, he grew up with 'nothing' as a kid, meaning he was a lot poorer than what we consider 'poor' in America.
anyway, you got lot of potential to even consider a masters, so venture for it and prove that you can achieve what others fear of even seeing what their own hands can do.
remember, humanity has no limits, the mind shall be key, and fatique makes cowards of us all. precision of success starts with yourself taking action, not just letting things pass you by. credentials can be in a frame on a wall to make you look good, or it can give you the experience of a life time to see the future from where you already stand.