Cause of Corruption
Let's stop blaming others and look within ourselves. There is only one solution to all our problems: repentance. The problems aren't there only to punish us for what we did wrong, but also to make us rectify that wrong. So every problem is actually a call to action and an opportunity to improve.
Many people think corruption to be synonymous with fraud (mostly relating to money), when a person in a position of power cheats or abuses their power. However, corruption ( fasad in Arabic) is a broad term and refers to any kind of spoilage but most specifically to bloodshed.
"Corruption has appeared throughout the land and sea because of what the hands of people have earned so He may let them taste part of [the consequences of] what they have done that perhaps they will return." 30:41
ظَهَرَ الۡفَسَادُ فِىۡ الۡبَرِّ وَالۡبَحۡرِ بِمَا كَسَبَتۡ اَيۡدِىۡ النَّاسِ لِيُذِيۡقَهُمۡ بَعۡضَ الَّذِىۡ عَمِلُوۡا لَعَلَّهُمۡ يَرۡجِعُوۡنَ ﴿ ۴۱ ﴾
خشکی اور تری میں لوگوں کے اعمال کے سبب فساد پھیل گیا ہے تاکہ خدا اُن کو اُن کے بعض اعمال کا مزہ چکھائے شاید کہ وہ باز آجائیں ﴿ ۴۱