it's not :P

Meh, depends on perspective. I know a lot of people here learning English to help with their jobs. It's the most common language on the internet and taught as a required second language in many countries, so if you like communicating a bit in lots of countries, it could be useful there.

No doubt English is a universal language. It is the most widely used language around the world. I am telling this from my own experience. Although I live in an Arabic Muslim country I have to deal with people in english when i go out even for shopping. Secondly if you want to attend world class university you must know english. Last but not the least, when you go to different country and you dont know their language and they dont know yours, still you have the a third language, English, to communicate.

because it's a common language as Andrew said , and i would say it is an International Language . for example , if you traveled to any country you will find someone who speaks English even if it not their own language . The importance of English is not just in how many people speak it but in what it is used for. English is the major language of news and information in the world. It is the language of business and government.

Pardon my cynical answer, but... If the person who has The Money speaks only one language, then you have to speak that language also, if you want The Money.