In your opinion, talents who didn't achieve a college degree, are they able to claim high positions and reach the top of the business pyramid?

Absolutely "YES"! because the UNI isn't the only one place where we can earn/collect knowledge! Of course, uni degree help a lot during the carrier!, but talented people without degree can be real nice leader and manager. Often are people without degree more aware about the needs because they have to have the assumption/understanding and knowledge to "know nothing" before they start collecting knowledge and often they work more to proof the skills, knowledge and willingness to achieve any goal.

Yes... but in very exceptional cases. You mentioned a list of very special people. 

A certain level of education, personal qualities and talents are the major ingredients needed to reach success in business.

Well it depends on whitch sector of business you want to achieve high level. In industries where knowledge of scientific, legal or economical knowledge is must, it is not that easy to be promoted without basic degree, but if it is not that much important of course you have all chances to reach your goal position.

The answer to your question is here:

These19 Insanely Successful College Dropouts Prove You Don't Need A DegreeRead more:  http://www.businessinsider.com/most-successful-college-droputs-2013-9?op=1#ixzz3UoWwOr1N

TALENT is a special natural ability or aptitude for something special. ALL THE TALENTED PEOPLE MAY NOT HAVE ACADEMIC DEGREES/QUALIFICATIONS: ALL THE DEGREE HOLDERS MAY NOT BE BLESSED WITH TALENT. Talent and degree are different. for example Bill gates has been blessed with Talent rather than degrees.

Yes! It will be on the long process but it is possible. It starts from the bottom to the top. There are lot of people who wants to achieve college degree but cannot, financially. It's not a hindrance for every person to achieve his/her dreams in life. Of course, he/she maybe hired by the company on the lowest position based on his/her education and ability. On the process, he/she will learn more through work experiences/trainings and that will be his/her stepping stone. Integrity, enthusiasm and determination will take him/ her to the higher level of the business pyramid.

Yes any thing is possible if you stick your mind to the job in hand

Top of the pyramid you mean to say be the owner of the business. There are many in today world who have reached in that position without sufficient education background. If you will to do you win to achieve your target.

In my opinion Business Means not that you have learned from college experience is the best teacher at the same time to reach top need professionalism for that college degree is required so both is required 

It would certainly be difficult without  A DEGREE.

Thanks for the invite,

I could only vote up the answers provide by the experts in the field.