It's fair to say degree certs dun hold the edge anymore in any
industry.
But i seriously doubt a master's will make a significant
difference. At the moment, companies prefer employees who sell
their soul (literally) to the company.
So if you want a fat pay cheque, forget about self-pride, screw
social life and sink into the deepest ball-licking, boot-shining,
backstabbing you dare, anything to climb to the pinnacle of the
corporate ladder.
Kidding.
Just stay focused and keep your drive. Your pay adjustments will
come.
In the meantime, Masters is for those who choose to enter a
specialised field. It fact, it's best you get your company to
sponser the course. No point investinig unnecessarily.