This good old Anglo Saxon trick "Look! They have ... (WMD, downed MH-17, state sponsored doping programm - pick an apropriate variant). Nothing new under the sun.
It deppends on what TV channel you're whatching and what radio station are listening. This is how things work nowadays.
Do we speak about doping, or in general? Every country's athletes use doping, it's just the way modern Olympic games work. It's a question of who tries to catch whom and what power those people have internationally. The US has ultimate power nowadays ofcourse. The same goes for rule-breaking in general: the one who has ultimate powers over others will set the rules THEY need. The others can choose between doing what they have been told all the time, or taking their own way. Russia tried doing what it had been told in the 90's. What it has led to? Stepping on all Russia's interests in Europe including Czechoslovakia, Ukraine and NATO missile defence system (which is in fact offensive), getting into Russia's election process with feeding it's anti-goverment opposition, making them spit poison on all Russia's great hisrtory and people.
You live in a West-centric world guys, but it's not the only way. Nor is the best one.