I understand your point; even though, if Schroder were a Christian, he would have been a much better leader. I think God would have made that happen.
Merkel is Christian, her father was a priest who was so deeply religious that he accepted to move from Hamburg to Communist East Germany in 1954 because he got the call from his church. Merkel says that one of her favourite songs she likes to sing "Now let us all thank God". God bless and strengthens her in the fight against the Godless.