[rahimnathwani]

fsloth recommended Lencioni's "The Five Dysfunctions of a Team"

I'd second that, and suggest reading his other books, too. Particular 'The Advantage', which provides practical steps to solve the problems highlighted in his other fable/story books.

It's unlikely you will change the culture single-handedly. Maybe try to find others who have similar observations, share with them your ideas (or just buy them a copy of The Advantage) and go from there.