1. Do you actually expect his managers not to try to put a positive spin on it for the media? A celebrity trial is not exactly in the same league as an everyday misdemeanor case. He has a brand and he should (just like Dropbox or Path or whatever) be allowed to defend his brand.
2.
" I do hope that he fails in life, show me that this world is indeed a meritocracy after all, and that fortune can purchase fame and success for a while. As long as you pay dearly to sustain it. "
This is incredibly harsh. When you say that you "want" him to fail to show you that the world is "indeed a meritocracy", you are implicitly assuming that there is an inherent total ordering in which he comes at the bottom and that this is all that matters. This is a rather flawed assumption for two reasons 1) I am not even sure you can characterize an accurate objective total ordering for music 2) Even if you did, just like in the CS tech world where there are people who are incredibly smart but don't sell their products for a billion dollars, I would argue that musical ability is not really the only thing that matters when it comes to financial success. This is even more true for pop where success is determined by the number of people who enjoy the artist's music (and apparently from Bieber's financial success, it looks like there is a huge bunch of people who like his product and wish to buy it.)
"I wish I had Justin Bieber's Managers propping me up in life, I'd be a world sensation too if that were so."
Remember that he wasn't born with these magical "Managers". He also had to get his break in the wide world before he gets these magical "Managers".