I don't think the role of the UCI is that simple. They deal with conflicting interests.
Protect the market value of the sport we all love, protect the riders health, ensure a level playing field (or simply anti doping enforcement), protect the image of the sport.. just to name a few.
Biological passport along with the ongoing strict anti doping system, is propably the reason why the number of collapsing riders has declined, And at the same time it will help sell cycling as a clean sport, regardless of what happens in reality.
By no means would I assert that the UCI isn't deeply corrupt, but this corruption is actually very convenient, when you have to combine all of these conflicting objectives, it makes an organisation like the UCI run more smoothly.
Leading back to the original topic, I will simply ask the question. are the UCI escaping their responsibility in the fight against doping? or is it fair to say that they are just trying to keep the fight within reasonable limits, allowing the sport to avoid strangulation?
The answer probably lies in between these two poles.