Wow.

I'm a teacher. Your posts make me feel rather disgusted. To answer your question: yes you are certainly being a sour grape.

Be proud of your daughter for her accomplishments. But don't insult the other students, the other parents, or the teachers! You have zero idea about any of them. And, like pretty much everyone, you are very likely to have a strong bias towards your daughter (which is natural).
The students earn their award. They don't kiss ***** to get an award - most teachers are totally annoyed by attempts at sucking up! But there are limits to how many kids get which award, so if you have a large tie academically then you have to look at other factors that come into play in the classroom.