Wow. That's an impressive level of negativity. The RBRs have in fact shown extremely good reliability and Mark has proven he has the smarts to race hard without breaking his car. Yes, I know there was Valencia, but his rivals have also tripped over themselves. The difference is that Mark has been more consistent.
Mark is 14 points in front of Vetool and Alonso. What this means is that if Mark can finish second in two races, one of his rivals must win two races and score one point more than Mark in another. If Mark can win even one of the final three, he will almost have to DNF in one of the others to lose, as this will give him a 21 point lead, no matter where his rivals finish. To put it another way, if Mark wins in Korea, or either of the other two, he only needs two third places to win.
I can cut it all sorts of ways, but the truth is Mark Webber is in a very strong position. If he finishes on the podium in all three races, he will be nearly unbeatable.
Of course, a DNF changes everything, but for once Mark seems to have luck on his side.