I don't think you understand how most arranged marriages work. They're really just like your parents setting up blind dates for you, until you pick one you like. A lot of times busy young professionals in India (or other Asian countries) will choose to have their parents do this, because they don't have time to date around. They seem to work out quite often, since they're not forced into anything, as you appear to think.
I mean, I'd never do this, and my mom would think it was flipping hilarious if I asked her to, considering the type of guy I like isn't one even a mom as cool as mine would pick out for their daughter... but a few of my cousins have gotten business done that way.