All business analysts/project managers do not make more than all programmers.

There are other factors which are more important, such as industry/sector, level of domain knowledge, specialization, and the nature of the business you work in.

I know plenty of highly specialized developers who do contract/consulting work and pull in double or more what most BA's do.

It's all about business value, and if you bring that value, you'll get whatever the market can afford to pay.