Condemnation of Pride and Self-Conceit

Riyad-us-Saliheen 620
Salamah bin Al-Akwa' (May Allah be pleased with him) reported: Messenger of Allah (PBUH) said, "Man continues to display haughtiness and arrogance until he is recorded among the arrogant and will be therefore afflicted with what afflicts them."

[At-Tirmidhi]

To adopt the habits and manners of good people is deemed to be desirable. But, on the contrary, to take to the bad ways of bad people is considered undesirable. A man will ultimately be counted among those people whom he will take as a model to emulate, because he is gradually fitted into their framework and assimilates all of their qualities. Quite naturally then retribution will be administered to him accordingly.