Stephen Green explains if for you:
Let's pretend that I run two businesses. Widgets Inc enjoys sales of a million dollars per year, with net profits of a half million. At the same time, Doohickey Corporation has earnings of a billion dollars, with net profits of 20 million dollars per annum. Now let's say that you have a million dollars, and you want to start a new business to compete with me. Would you rather make widgets or doohickeys?
If you answered "Doohickeys," then you're an ignoramus, or you might be Jimmy Carter.
Read the rest.