The danger of self-deception through affluence

وَكَانَ لَهُۥ ثَمَرٌ فَقَالَ لِصَـٰحِبِهِۦ وَهُوَ يُحَاوِرُهُۥٓ أَنَا۠ أَكْثَرُ مِنكَ مَالًا وَأَعَزُّ نَفَرًا

And he had fruit, so he said to his companion while he was conversing with him, "I am greater than you in wealth and mightier in [numbers of] men."