Adam Adli and double standards

Adam Adli was my scout leader in secondary school. Just recently his name appeared in the national newspapers.
What he did? he lowered a flag bearing our prime minister's image.
What happened next? Government wants apology, Adam Adli and family received death threats and are harassed.

So, I'm wondering is our prime minister's image very sacred? It is as though Najib (our prime minister) is more powerful and sovereign than our Agong (king). Adam did not bring down the Malaysian flag or desecrate it. What was his action compared to grown-up Umno men stomping on Penang CM Lim Guan Eng's photo and bringing a coffin to his office or the Perkasa goons who burnt Bersih coordinator S Ambiga's picture.
What actions were taken by the government and home minister on those cases? Hmm, almost nothing! 

Hmm, such double standards don't you think?
How about the cow head incident by Perkasa. It was clearly a racial insult but the police and government did not take action against them, instead the Home Minister (Hisyamhuddin) defended the Perkasa protesters as their freedom to voice out BUT the police force and the government arrested people holding a peaceful candlelight vigil and singing Negaraku to protest against corruption. The reason Home minister provided was "we have freedom to voice out but not freedom to riot"


Again I wonder and can't understand how the Government can say that Riot is defined when you have a peaceful protest with candles. But if you hold a cow's head and shout racial insults and step on the cow head, it is not Dangerous nor Sensitive. It's just a peaceful gathering which is challenging other beliefs and provoking the other religion's sacred and holy object. I am really confused with what the government term as Dangerous and Peaceful, and Riot. What exactly is sensitive? Is it taunting other religions or is it protesting against injustice?