"Making features in order to have happy customers and so drive sales" is not exactly the same as "Making features to make money".

But it's also distinct from making "features" to control your monopoly.

You're right. It does make apple more money. I don't even think it's a coincidence.

Because people could use whatever web browser they wanted and tons of people experienced 3-5 hour battery life, I imagine a lot of them would ditch iOS thinking that the iPhone was the problem.

And Apple would lose money.

There are some things Apple does that are very blatantly self-serving. I think there's are VERY reasonable explanations for this one (power usage and security being two).

You can't make claims like that without backing them up. I need evidence that Firefox Android users are experiencing 3-5 hour battery life.