Do you think lack of proficiency makes us to prefer using simple English?Writing skills too play an important role in our career. In good olden days, we used to hear the word - 'a pen man'. It means he is very good at presenting a good draft with very good English and people used to line at his house to get a good draft for posting their grievances to higher authorities. Even in our daily office routine, those people with good English and drafting skills are well respected and always looked at to attend to the work of their boss.
Thus being good at written English makes you more powerful. Many of us have the skill to write well but not good at spoken English while some are very good at spoken language while they fail bitterly to put it on paper/using key board. The difference is simple. It is the language you use - using simple terms or a complex words. But some people are so proficient that they use very good new words which carry beautiful meaning but we have to search for dictionary because of the command over the language. I tried many a times but failed bitterly as I can't carry a Dictionary with me and preferred to opt simple words as no other option for me. What about you?