Everything one does should lead one to happiness. I firmly believe in it.
I often tell my students, who are non-native learners of English, that studying English is a part of our larger campaign in life: to become happy.
A good command of English opens an entirely new world for you. You truly become a citizen of the world. You get a chance to peep into various cultures. You get to know what the best is in every field. You can know where you are in comparison with others. You come out of the complacent attitude like a frog in a well. In short, an ability to use and understand English will help you lead a qualitatively better life, no matter what your profession is.
So, if you agree with me, or even if you don’t, just drop me a line.