Are you absolutely certain that you can prove that there was no supreme being/deity involved in the creation of the universe? If so, I wish I had your faith!
Science has espoused all sorts of theories throughout the ages and then other generations come along and 'prove' that they were wrong.
There are many Christians who do not believe in the literal interpretation of the bible. However, that isn't my point. I'm saying that I acknowledge that my belief is faith 'the substance of things hoped for, the evidence of things unseen'. Yes, blind if you like, but blind people can still use their brains and work things out. There are all sorts that I can not prove through science, but rely on other intangible things. There is a spiritual dimension to humanity that makes me cry at certain music, or sceneries or art etc. Human love can't be proved, but it is manifested and believed in through how we treat each other and through emotions. It often doesn't even make much sense - or is that just my life!
I don't know how the universe and our world came in to being - but even if the Big Bang can be proved (and the LHC is very interesting), that doesn't mean that God didn't chose that method for creation.
I'm more interested in the why than how and hope that makes me live a life that is beneficial to others and reassuring for me.