Music History: Know Your Samples (Daft Punk)

Most people are aware Daft Punk use samples, but even we were shocked at some of these revelations.  “Robot Rock” was a sample? A Barry Manilow song translates to actual music you can dance to? What’s most shocking is how SO MANY of Daft Punk’s songs are COMPLETELY sample based.  This video in particular points out songs where they not only used direct samples, but used them as the basis for the entire song (in some cases hardly altering the original).  Perhaps it’s just me, but it makes me a little squeamish.  Is it wrong to judge a band for this?