You have put two qualifying words to your portfolio. Aggressive and contrarian. Amit Jain (jamit05) has already explained beautifully as to what is meant by contrarian investor. Nothing more needs to be added to what Amit has already said.
Now tell me. On which aspect are you trying to be aggressive? Aggressive to make money quickly? Are you aggressive in assuming that bad and dishonest managements of some of the stocks mentioned by you are already discounted by the market? Are you trying to be aggressive in assuming that these bad managements will come good and clean sooner than later? See assumptions no. 1 to 4 mentioned in your first post have nothing (specifically and specially) to do with any of the stocks mentioned by you.
From whatever a little experience I have gained (by loosing good portion of my portfolio. I have paid tuition fees), I would like to tell you this important point. Never ever bet on dishonest/bad management team. Market never likes them. Probability of loosing money by betting on bad/dishonest management is far far greater than making money. Trying to make money by betting on bad/dishonest in itself is not a good idea and trying to do it quickly, will be suicidal. Apologies for using such a strong word.