Arjen Robben's forward runs led the Dutch to a 2-0 victory in Sao Paulo, with the Europeans opting to soak up their opponents' pressure and hit them on the counter-attack.
"They ended up winning, but in my opinion it was unfair because I think Chile made a huge effort to attack," Sampaoli told reporters. "We wanted to play and the Netherlands didn't."
The result means the Netherlands top Group B and are therefore likely avoid a clash with host nation Brazil in the last 16.
Talking to reporters after the game, Dutch midfielder Wesley Sneijder snapped back at Sampaoli, saying Chile had posed no serious threat to the Oranje.
"It's a little bit disrespectful to say that we didn't do anything today because we were the ones who won 2-0".
Invigorated by a 2-0 win over Spain that knocked out the defending champion, Chile surprised many with its constant pressure and aggressive attacks.
And Sampaoli warned his team will be a fearsome rival to whoever it face in the next round.
"Whoever we end up playing against it is going to be a high intensity match," he said. "Could be Brazil, could be Croatia, whoever it is. Our rival will know it is going to face a team that will play for 90 minutes."
- Sports & Recreation
- Arjen Robben