And thus We have tried some of them through others that they [i.e., the disbelievers] might say, "Is it these whom Allāh has favored among us?" Is not Allāh most knowing of those who are grateful?
The Messenger Neither has the Key to Allah's Treasures, Nor Knows the Unseen
Allah said to His Messenger ,
قُل لاَّ أَقُولُ لَكُمْ عِندِى خَزَآئِنُ اللَّهِ
(Say: "I don't tell you that with me are the treasures of Allah.") meaning, I do not own Allah's treasures or have any power over them,
وَلا أَعْلَمُ الْغَيْبَ
(nor (that) I know the Unseen,) and I do not say that I know the Unseen, because its knowledge is with Allah and I only know what He conveys of it to me.
وَلا أَقُولُ لَكُمْ إِنِّى مَلَكٌ
(nor I tell you that I am an angel.) meaning, I do not claim that I am an angel. I am only a human to whom Allah sends revelation, and He honored me with this duty and favored me with it.
In Islam there is No Distinction between Rich and Poor, High or Low
As for people who failed to feel human despite being human, even touched the outer limit of rating human beings as one of the smartest animals of the world, who did not hesitate in harnessing other ` animals' in their service, what would they know about the purpose of creation other than taking the fulfillment of their immediate physical compulsions and needs, and acting in accordance with animal instincts as the purpose of their lives - very much like an animal would do. When this be the only purpose of life, then, it is also obvious that the criterion of recognizing good and bad, small or big, high or low, noble or mean can hardly be any other than whoever has more and better to eat and drink, wear and use up, and things and resources to live around with and hold on to, shall be successful, honourable and noble - and whoever has less of these shall be low life and doomed!
Those who have achieved wealth and popularity prefer to give weightage to the considerations of their worldly interests, rather than support the pure and unadulterated call of Truth, because, according to them, supporting the Truth would amount to demolition of the entire structure of their vested interests. Moreover, when they see that Truth is upheld by people of ordinary status, their way of thinking is further strengthened. They feel that by associating with the Truth they will be lowering their own status. Instead of testing the Truth on the touchstone of Truth, they judge it by their own criteria, i.e. by their own private and personal touchstone, and when the Truth does not measure up to this, they ignore it.
Uthmani text of the Madinah mushaf (King Fahd Complex). Translation: Saheeh International. Tafsir via Quran.com.