^
I don't know why you'd be so keen on that, but you can.
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There is nothing that you should be doing about that what you call 'maximize'.
These are elementary differences the way application windows are handled by each OS.
Say you are working on a 1920x1080 screen. Do you still maximize each browser and explorer window you open, in Windows? There's a point you stop doing that in Windows too, since it becomes impractical.
Yeah, OS X works a bit different. Windows at their 'zoomed' size are just what it takes to accommodate all of their contents. But then, you still get what you wanted. Its just that you(me, everybody) have been trained with that sense of fulfillment after mazimising a window.
Some apps like Firefox defy the OS X rule though. And yeah, you have workarounds for native Cocoa apps, for that 'maximize' feature.