Hashirama is wrong this time.
spoiler if you haven't read chapter 626.
↑Hashirama is wrong when he says he was the one who created darkness and what madara predicted was correct.
It is all madara's fault.
You know, the village doubted uchihas only because they thought uchiha are the one who did the kyuubi attack on the village. But it was actually obito, who was corrupted by MS and evil plans of madara, so if say, madara had died , there would be no obito , so no attack of kyuubi.
And the most important thing is, minato would still be alive, so maybe he would have made an uchiha a hokage or something along those lines to show uchiha that, they still trust them and consider them as a part of the village.
Also uchiha massacre would have never happened too. You know, hiruzen didn't got the opportunity to talk to uchiha and settle things because he lost in the vote count, this time it wouldn't have happened because minato would still be alive so his vote would also be counted.