Cock fighting is the only game which i believe has the 50- 50% fair change of wining No interference from outside. I enjoy seeing the people screaming and cheering for cocks to win.
I feel bad when cocks kill each other with the blade in their claws.
You are right this do really have that 50-50% chance of winning yet you do only have two options of choosing a fighting cock.
For more "sabong" definition and its history then its really worthy to read up this this article
http://www.stuartxchange.org/SabongIt might be brutal on your own sight but for the people who do have this kind of hobby or gambling activity doesnt really care at all.