You can't really criticise Wiggins for riding in a dominant and wealthy team - let's be honest, we would all do the same given the opportunity.
The "abuse" as you call it I think is partially warranted given some of the ridiculous, ill-informed comments and accusations that appear on this forum and others. The facts to any argument need to be based on proof and evidence, but the level of such proof and evidence here and elsewhere is non-existent and often complete fiction.
"Worships Lance" is a bit of a strong description - how many of us who've followed the sport for years didn't have cycling heroes when we were younger? i.e. Lance, Hinault, Indurain etc. Brad's cycling youth was during the Lance generation, before the truth behind Lance was recently revealed so you can't really deride him for stating who he respected when he was younger.
In my book, arrogance is fine because every sport needs its characters to make it interesting. There was a time when many found Cippolini the most arrogant ****er who walked the planet - today he is revered as one of the most colourful characters the sport has ever seen, the arrogance is part of that.
I'm sure I'll get labeled as a simple Wiggo fanboy but my outlook is it is the characters in sport that make it interesting and diverse. Therefore we should appreciate the dull and extravagant in equal measure.