In the history of sport there are numerous examples of athletes that are simply better than their peers. Ali, Sugar Ray, Maradonna, Pele, Jordan, Gretzky, Sampras, McEnroe, Phelps, Owens, Schumacher etc. etc. Each one reached the top of their game through a mix of genetics, aptitude, commitment to training, coaching, luck, family support, circumstances and, of course, the physical and social environment they were brought up in. Long before most of the greatest sports men and women on the planet were exposed to the pressures of professional stardom they had shown they were a class above the rest throughout their formative years. They didn´t suddenly find a chemist and transform into superman.
Most of these heroes are or were flawed geniuses (gambling, alcohol, drugs, extra-marital affairs,wife abuse - you name it our heroes have done it)- but geniuses they were and we accept them as human beings who raised their sports to new levels.
Is there something singularly different about the sport of cycling that its fans cannot accept it when someone comes along who is, quite simply, better than his peers. If that cyclist, through a mix of the factors listed above, was destined to raise the bar in cycling? The Armstrongs, Indurains, Hinaults and Merckxs of this world all achieved greatness by seeking out every advantage available within the parameters of the professional cycling world. I doubt if any achieved it without artificial assistance - but the same goes for all our other sports heroes. Ali used to have pain killers injected into his hands before fights, Maradonna snorted coke, Best was an alcoholic, Bonds pumped up on steroids and the list goes on. Blood transfusions were used by runners decades ago, steroids have been ripe in all strength sports since they became available and that´s just scratching at the surface - every sport has a dark side, an aspect that is less than savoury if you want to be puritanical about it.
On the other hand, if you want to be realistic and accept that professional sport and science have always been, and always will be, interlinked then you might come down from your pulpits and enjoy the world of sport for what it is - warts and all.
I reckon Lance achieved what he achieved by being the best all round Tour cyclist of his generation - physically and mentally. Any other contributing factors would have been secondary to this and would also have been used by his peers (as well as the greats that went before him).
Flawed genius - you bet, but sporting genius nevertheless.