Yes definitely if lying can prevent wars, bring about peace, save families from feuds, mend friendships, etc then the good the lie brings about far outweighs its evils. However in case of the OP its different..here the man made money by selling his lies..its not like he only lied with the intention of furthering a noble cause, Allahu alam. What did he do with all the moolah he raked? Was what he did fraudery and illegal? These are all to be taken to account!