But, there are exceptions.
I recently went through the Forbes billionaire list and picked out everyone that made their fortune through technology. I found that about ~35% had no Bachelor's degrees and ~55% had no Master's degrees. Then I looked at the top 7 on the list and saw that more than 50% did not have Bachelor's degrees. It is also interesting to note that billionaire college dropouts are worth $9bn on average, compared to billionaires with Ph.D.'s, worth an average of $3bn.
Most college dropouts don't become billionaires. But, an overwhelming number of tech billionaires are college dropouts. Interesting...
Why is there such a high percentage of tech billionaires that are college dropouts? My theory is that there are people that are born entrepreneurs and will become billionaires whichever path they take in life. Most of these people are very smart, and, as a result, end up going to Ivy Leagues. But, a time comes (usually around age 19 or sophomore year in college), when something just wakes up in them and they decide to drop out and take the plunge. These are the Bill Gates and Mark Zuckerbergs of the world.
Dropping out of college does not increase your chances of success. If you look at statistics, it decreases your chances. It's just that the born entrepreneurs "wake up" right around age 19-20 (which happens to be right in the middle of college), and end up dropping out. Only if you are in this tiny group of born entrepreneurs would it make sense for you to drop out of college.