As John Nichols documented so well in his book "The Genius of Impeachment," many successful impeachments have succeeded without conviction or even impeachment, and some without even the introduction of articles of impeachment. Alberto Gonzales was merely threatened with impeachment. There were powerful people he could have squealed on who probably urged him to leave, but that is likely to be true for Thomas as well. Gonzales was unable to find work in any law firm following his resignation. By contrast, the Congressman who proposed consideration of his impeachment is now a serious candidate for Governor of Washington.
Clarence Thomas richly deserves to follow in Alberto Gonzales' footsteps.