For Allah is perfectly aware of how deeply it is ingrained in man and what great pressure it exercises on him. It is a fact that man reacts with ingratitude to all the bounties of his Lord. He denies the favours which Allah confers on him. His thanklessness and ingratitude is reflected in a host of actions and verbal statements which will serve as witness against him. For on the Day of Judgement he will speak the plain truth even against himself, without any contentions or excuses.
Man is a passionate self-lover.
This is his nature unless he has faith which changes his concepts, values and even his concerns. Faith changes his ingratitude to humble thankfulness. It changes his greed and miserliness to benevolence and compassion. It makes him aware of the proper values which are worthy of being the object of ambition and hard competition. Indeed these are much more exalted than money, power and mundane pleasures.