the met gala dress logic?

i chose this topic because this was the recent one i came across.
I really do have a big question as to why the dresses made in the met gala are so not normal and not wearable by the normal people like you and me.
If something should be encouraged it should have a meaning behind it i can't see what good does it possibly makes to anybody by wasting so much money, time and effort in making those things which will eventually end up in some store which again will be brought by some rich dad's kids again wasting the money...
so fellows what are your thoughts on this let me know, or don't it's up to you... and by the way you , yes you the one reading it thanks >~<