Why would one want to blend? Sticking out and being different is a great thing. Displaying self-expression and individualism is important to who each of us are. I have found this to be true in my profession and I would encourage people to spend more time on what they wear. It can drastically impact ones success. Simply put, don't look sloppy.
There are really practical concerns that arise from this, as I noted with the global inequities that surface. By only thinking of ourselves, others live crummier lives.
In principle, this is a dismal notion. Meanwhile, such imbalances will come back to haunt us.
As the "haves" we need to start asking what our responsibilities are to the "have nots." If not because it's the right thing to do, from a perspective of self preservation.
Making a difference in the world is.
The two aren't connected as often as us entrepreneurs like to believe, though.
btw 'the west' is not the only part of the world where clothes have a meaning.