Sutton's fifth-minute goal was enough to take Hearts level on points with Hibernian, who face Aberdeen on Monday, and two behind their hosts as they look to jump from 10th place in the Clydesdale Bank Premier League to seventh.
Manager Gary Locke had stressed before the game that the £300,000 difference in prize money was an important factor in ensuring they did so and Sutton believes there are other motivating tools too.
The former Motherwell and St Mirren striker said: "It's the first time we have had back to back wins, which is important.
"A lot of people have said there is not too much for us to play for but we want to finish as high as we can, which is seventh.
"If we had lost that would have been difficult. We have got to look at making it three in a row now.
"Obviously we are aware of the prize money. We don't know the ins and outs but obviously the club is not in great financial shape given they were asking fans to buy shares.
"We are aware that's important but if you saw us play five-a-sides in training you would see it's competitive.
"When there is a game for real you want to win regardless.
"There is money and there is not much prestige in finishing seventh, but we want to finish on a high and get whatever prestige there is."