The Wedge shape is given to a ship to maximize forward firepower and visibility when dealing with multiple gun platforms on a large capital ship. It's such a powerful configuration that some Corellian parents name their kids after this engineering technique in hopes that the power associated with the form will aid their child in their chose profession, which on Corellia is almost always pilot.
For some reason.
I'm starting to wonder if Corellians ever do anything else. Ever.