Uh, let's see. Could it be because the "scientist" is not forced to pay taxes for what is taught in church? However, even when I sent my kids to a private Christian school (in which they learned far more than they ever did during their later years in public school), I still had to pay taxes to send other kids to school? So why does my opinion/vote not matter when it comes to what is being taught in "science" class in a government school? Do I not support government with the huge amount of money they take from me?
Because, Dennis, it's probable that you are not qualified to determine what is science and what is not. Much like your input on tax-funded military projects is also probably unqualified.
Now, if you feel that you are qualified, and believe science should teach things other than science, or at least include religion, vote for a school board and laws that will change the system. Take a look at Saudi Arabia and other Islamic countries. That's what they do already.