Wenger said: “You lack that natural edge that you have when you go for something, but we have a responsibility to the rest of the league at the top and bottom.
“We have to be fair to the other teams. If we were fighting not to go down I would not like to see a team go to Manchester United and take points because they do not care.
“Next week [against Chelsea] we have the same responsibility at the top. It is a bit more exciting and we will go for it a bit more.
“There will be more at stake prestige-wise.
“It is a good game to play because it is a good opportunity to show we are strong for next season and able to fight with Chelsea and Manchester United, who are quite ahead of us this season.”