If drugs enhance performance, doesn't that help the team?

I guess that depends on whether the player gets caught.  

Mets Closer Mejia Suspended for Positive Doping Test
By REUTERSAPRIL 13, 2015, 1:25 A.M. E.D.T.

Who? I happened to hear some post game stuff on this following a Met game, I think on Saturday. The Met players were described as angry at their teammate and an interview with David Wright was shown as proof. Given the lead in I did not find Wright particularly angry. Here's what Wright said about Mets closer Jenrry Mejia: "you're hurting everyone in here. You're letting down your teammates".

Mejia has been suspended for 80 games without pay. Mejia claimed that he is innocent but issued the obligatory apology to everyone.

Weasels on parade: Pedroia, Scherzer, Longoria, maybe more. Monday, August 5, 2013

Max Scherzer: concerning teammate Jhonny Peralta:

“For me, I’ve made my statements,” Scherzer said. “It’s pretty apparent how I feel towards cheaters. With Jhonny, it’s disappointing, it really is.”

In fairness to Scherzer he had already spoken out about Ryan Braun.  This season Scherzer is 16-1.  That's with Peralta playing shortstop on steroids.  Is Scherzer so upset that he'll ask that at least some of his wins be vacated?  After all, Scherzer wouldn't want to benefit from the evil deeds of Peralta, a man he described as a "cheater".
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Vacate wins and championships. Chants of 1918 return to Yankee Stadium.
Tuesday, September 3, 2013

What if Major Baseball League (MBL) commissioner Allen Huber "Bud" Selig comes back from the grave and actually takes effective action on his self proclaimed problem of PED?  Vacating wins and past championships would go a long way towards real action.  And along with that would be to deny the penalized teams a share of tournament revenue.
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David Wright isn't the first nor is Wright likely to be the last to miss the essential point that the degree of disappointment in a banished teammate is directly related to the contribution to the team made by that teammate and that contribution is directly related the degree to which the banished one's performance had been enhanced by his use of performance enhancing drugs, hence the term.

Duh.