With automatic qualification for the finals wrapped up long before Tuesday's final round of qualification, the Oranje still dispatched Turkey 2-0 to finish with nine wins from 10 games and top Group G.
And Robben, who opened the scoring against Fatih Terim’s side, insisted that Netherlands had to learn whatever they could in the months ahead in order to go into Brazil as one of the top teams.
“We are not favourites for the World Cup but we are improving,” he said to SBS6. “We must look at ourselves, not at other countries.
“I think we are improving step by step. But there is still a lot of work to do. We need to remain calm and stay with both feet on the ground.
“We will play interesting matches against Colombia and France. We can learn from these friendlies towards the World Cup.
Robben also touched on the win against Turkey and his goal, which came via a free kick in the eighth minute, with Wesley Sneijder scoring the other goal of the game two minutes into the second half.
“It was an ideal free kick,” he enthused. “I wanted it to go on goal, and when no one touches the ball, the goalie can't do anything.
“We were prepared for the atmosphere and the crowd. Turkey played to the last chance. But we started very well. Today was a more difficult opponent compared with Friday [an 8-1 win over Hungary], but we didn't have big problems tonight."
Forward Dirk Kuyt, meanwhile, spoke highly of Turkey and their supporters, and maintained that despite the disappointment of missing out on the World Cup, the country’s football continues to improve.
“[Netherlands coach] Louis Van Gaal told us yesterday that we were going to play against the toughest team in this group,” said the Fenerbahce forward to NTV-Spor. “The supporters were very reinforcing for them [Turkey] throughout the whole match.
“The Turkish team came here by winning their last three games and they played pretty well. But unfortunately that was not enough for them to go to the World Cup.
“They started to win their games too late. But I think Turkish football is getting better every day.”