The ability to turn words into gold is probably the most important aspect of any marketer. If you can do this, it does not matter where you are in the world, you can make money from anywhere, anytime just from your words.
This whole copywriting thing came later on. Back in the day, the best “copywriters” were the great businesspersons of the olden days who knew how to sell anything to anybody. While people possessed powerful weapons, their most powerful weapon was their pen (or tongue).
Today, modern entrepreneurs are making a killing using copywriting techniques in their businesses. Bear in mind, selling things online is a lot harder than selling things offline because you lack the sincerity of voice and body language.