Mr Rangel is a member of the political class.
A D.A. has to file charges. Ethical violations determined by fellow MOC's run along the lines of housekeeping. The findings need to be turned over to law enforcement in order to have criminal investigations begin.
The House Ethics Committee as such runs parallel to Articles of Impeachment, these are political remedies, not criminal.
Can any one explain to me why he is not facing criminal actual charges from law enforcement? ... Charlie USED to be head of the House Appropriations Committee. He still has the pull that got him there. If LE, (SS, FBI, Capitol Police, Barney Fife, or the IRS)went after him, they would get no budget bigger than the one they had in 1972.