There are bad men and good men, it's as simple as that

'Divine mysteries, all nonsense,' she said. 'There are bad men and good men, it's as simple as that. Greed and malevolence face moderation and decency. Carlo always wants to bring theology into things, blame everything  on the devil.'
'That's his trade.'
'Yes, his trade. Evil's necessary to his trade. Without evil he'd have nothing to do.'

A. Burgess, Earthly Powers (1980), 300