The dialouge is indeed pretty corny and expected, but Rutger delivers. The hokeyness doesn't hamper him in the least. I'll leave you to decide what kind of comment that is on his acting skills. I mean, that man has been in more bad movies than... well Rudger Hauer, but It seems to suit him.
Contrast the scene where he kills Tyrel which is quite fabulous and one or two other instances I can remember where he was in a whole other category of excellence.
It's not easy having to deal with this kind of 'high' literary style that rolls off the tongue like cement.
While it's certainly true that most Sci Fi buffs are sentimental about blade runner to the point of nausea, there is a reason. It's an excellent movie, not that I am going to buy it again every time Ridley Scott resides to make a new 'final revision'. Where are we at now, 3, 4, 5...