Marc Wilmots' men will face the United States in Salvador on Tuesday after winning all three of their Group H matches en route to the knockout stages, though have been reliant on late goals to narrowly overcome their opponents.
The Red Devils came from behind to beat Algeria 2-1 in their World Cup opener, while they battled to 1-0 wins over Russia and South Korea but De Bruyne does not consider the manner of victory significant, claiming results are all that matter.
"For us it's about winning the game," the 23-year-old Wolfsburg winger told reporters.
"If you score one goal more than the other [team] then everybody can say whatever they want. For me I just want to win the game and go as far as possible.
"You will not find any easy games at this World Cup so I think it's a little bit stupid for people to say Belgium didn't play well.
"I think we deserved to win the three games and that's it."
Belgium face the United States in Salvador on Tuesday, aiming to go beyond the last 16 for the first time since the 1986 World Cup in Mexico.