The world is grey, not black and white.
These are collectives of politicians, who have a huge number of difficult problems to solve and limited means of solving them. They have conflicting, national, local and, yes, some personal demands. A mass of conflicting ideology, with varying levels of diligence, ethics and greed.
Expecting absolute morals is expecting the impossible.
Compared to virtually any government in history, and most governments today, the EU is far, far from corrupt. Yes there is corruption. But no government has no corruption.
And it's certainly not helpful, or thruthful, to use silly rhetoric like 'The ship sailed long ago on the EU being anything but corrupt'.
That is a lie, and I can only hope you are adult enough to admit it is one.