"I think it was a missed chance for AC Milan and Juve rather than for us," said Milito, who scored his 10th goal of the campaign on Sunday.
"We now hold a five-point lead over Milan and we are six points clear of Juventus.
"We just have to continue to work hard and remain on this path."
Milito had hoped his 14th minute goal would have given Inter all three points.
"It is a pity because we dominated the game for an hour" said Milito. "But we were unable to score the second goal which would have allowed us to kill the game off.
"Sneijder's sending off proved crucial.
"It affected our balance and our rivals took advantage and equalised."