[Orgmode] org-mode is turning off soft word wrapping.

[Good Bad]

When I visit a text file, a C file or a TeX file, it is in soft word wrapping
mode, i.e. long lines get wrapped, but without really inserting newlines.

But when I visit an org file, it is not in word wrapping mode, i.e. longs lines
never gets wrapped, you can't see the whole line if the line is too long.

1. How do I turn on soft word wrapping in org-mode?

2. If org-mode automatically turning off word wrapping is a feature, what is the
reason non-wrapping mode should be prefered in org-mode? I can see why in ediff
mode tho.

I don't know what word wrapping mode and non-word wrapping mode are called in
emacs speak.