The Republic of Ireland international put the Latics ahead in the Barclays Premier League clash at the DW Stadium and later netted again to ensure the game finished 2-2 after the visitors had responded through Ryan Nelsen and Djibril Cisse.
McCarthy, having last scored in February 2011, was certainly pleased to hit the back of the net, but he has stressed he would readily trade the double in for three points.
"It's been a very long time coming - too long - but it was nice to get back on the scoresheet," said McCarthy, quoted on www.wigantoday.net.
"But I don't really feel like celebrating much because we've drawn a game we should have won and I'd have traded both goals for the three points.
"No disrespect to QPR but I felt we dominated the game and created enough chances to have won the game.
"But the way we fought back from going 2-1 down shows we've got good character at the club and we're definitely going in the right direction."