So you don't believe there's a possibility they've 'evolved' since... 1979?
No, it is in their DNA. The Iranian mullahs have been struggling for control over the central government of Iran for much of the 20th century. They have now been in power for almost 30 years. Absolute power corrupts absolutely. There is a reason why they are so unpopular in Iran. They are corrupt, oppressive tyrants. They will not relinquish their power willingly.