We are all using borrowed material which has been refined from times past. The great men who we revere as the founding fathers of modern martial arts all took what they deemed best from what they had learned and pared it down to what they thought was a more practical and efficient system than what they had been taught. These people are not looked upon as renegades but innovators. There is no shortage of supposedly honorable people out there who are more than willing to try to make a quick buck or boost their own reputations by using one of the following strategies. Everyone wants to think that the system he has chosen is the best, most powerful and most effective.
All systems have a great deal to offer, but none is perfect.
Hard stylists seldom grapple and grapplers seldom spar. If you want to be the best, then study both ways or study a system that incorporates both methods. There are constant challenges and cross challenges both verbally and in print where one stylist wants to fight another stylist or this celebrity can beat up that celebrity. Well, lets look at the challenges themselves. If that person actually thought anyone would take up the challenge, he would keep his mouth shut.