Alright - Gattaca is the film but what is your actual context?
A couple of things spring into my mind when I read that (bear in mind I studied Gattaca in 2007/2007 so it's not very fresh in my mind.
1) Alienation of and discrimination against certain individuals in society based on their genetic make-up. (Although it's displayed that an "invalid" can come out victorious over a "valid" despite their respective genes). For example, the scene between Anton and Vincent swimming and he drowns, relies on his invalid brother to save his life.
2) False sense of confidence and achievement is bestowed upon those individuals in society with "perfect genes", which can result in them not achieving anything despite their inherent advantage. They rely on these genes to set them up for life but they may not.
Sorry if none of that can be considered a rational thought.