Computing Grid Project

Why U participare whose projects Grid?
like this example http://fightaidsathome.scripps.edu ??????????
I avoid these projects because they result from the constant use and high CPU. This results in greater use of power and heat and more of each CPU (because they had no chance of falling into low power mode). A warmer machine is a machine less reliable, and this Not good for me.
OGF23 GridCast – Achievements of the LHC computing grid