If one were to ask any Israeli which party is the most corrupt or which party will bend any which way to defend its own interests, many will reply Shas. I don't dismiss the fact that there could be anti-religious and anti-Sephardi sentiments involved on occasion, but Shas continues to look the part that is assumed to be theirs.
Former leader Aryeh Deri is the quintessential villain of Israeli political corruption, after being the former darling of the political establishment. In addition Raphael Pinhasi, Yair Lev, Ofer Hugi and Yair Peretz have been convicted of offences including fraud and forgery. In addition, current MK Shlomo Benizri is currently on trial for accepting bribes.
Over the years, Shas has sat in governments that signed peace treaties and sat in governments which disavowed peace moves. The originally named "Sephardi Keepers of the Torah", has stayed in governments whose fiscal policies were both conservative and liberal. It seems that any position can be justified as long as the important ministerial positions are readily available.