Sikhs in the west mainly judge badal purely by Sikhi standards, his practice of Sikhi and how if at all he has the helped the Sikh community or Sikh cause. People in Punjab judge him by economic, monetary, legislative standards, in the same way that we judge the government of the country that we live in.
Badal is corrupt and is a sneaky politican through and through. However, politics in India is a dirty and corrupt game, and anyone that plays it is gonna have to get dirty. Punjab is a country where you have to buy loyalty, so Badal buys it left, right and centre.
The main problem I have with Badal is that he is trying to monopolize Sikhi and monpolize the Akal Takhat and the SGPC. However, I do not believe that any individual, whether Sikh or non-Sikh should have that much power. The fate of these important panthic institutes should lie only in the hands of the Sangat itself