2) excepting this, science in the ideal is indeed a wholly different beast. So you could say it is this the weakest form of religion, or, at least, the religion with the fewest dependencies.
3) in practice, the edifice of science is quite full of people who are hypocritical and flagrantly breaking the rules which you expect would be necessary to maintain the high standard that marks the difference between religion and science. These violations are often swept under the rug quietly and even when they get really big the organization is incredibly good at closing its ranks. I'd say there are a lot of parallels between the science industrial complex and, highly organized religions (such as megachurches and hierarchical institutions like the Southern Baptist or Catholic Church) than most people who see science as a source of power ought to be comfortable with.
That's actually wrong, albeit widely believed. In a purely random world with no patterns that could possibly be discovered, empiricism still gives you the optimal result. The only difference between such a world and a world with patterns is that in a purely random world, any other method would also give you the optimal result, because no method has any predictive power. Empiricism gives you optimal results no matter whether the world has patterns or not, in contrast to all other methods, which only give you optimal results if the world has no patterns. So, if you want to have optimal results, empiricism is the way to go, there are no alternatives unless you already know that you are in an unpredictable world.
A scientist doing science isn't religion. A non-scientist believing everything someone says "because science" is.
They are not incompatible, as the pope John Paul II states: Faith and reason are like two wings on which the human spirit rises to the contemplation of truth.
Perhaps you can find something analogous to this structure in psychology, but I just don't see it in the rest of the scientific landscape.
I will agree that I don't see this structure elsewhere in science...