They were always hungry for more, even if they hurt others to earn without any effort, using others. That was a great invention for them to sit on their expensive chairs, not working at all and worshipping their master, the Belphegor only. They continued this until they became the most ''successful'', little did they know was that is only the ''success'' of the Belphegor, who will eat them alive for the rest of their eternal life in Hell, not theirs.