Is there really a competition between a person like Dumbledore and a person like Lockhart?  

Why would anyone think that a grandiose unholy is in the same league as a sage?

That blusterous bravado, lies, game cheats and grandiose delusions will translate into anything strategic on the battlefield?  

And why would terrorism, harm and murder of innocents, translate into greatness on the battlefield?

How would tripping on power, delighting in sins and destruction in hate and abuse help them receive salvation, gain prosperity or standing with humanity and the world?  

What is conquered when honor, decency and humanity are lost?