If reasoning and being reasonable is seen as being a dick, the biggest problem facing us today is the fear of being seen as a dick.
Aint skeered.
You never have to be afraid of being a dick if your proclivities are not towards being one. I'm not saying I'm not one; it takes one to know one. But there's no need to fear being one if you're not naturally one.
It is possible to reason without being dickly. I've witnessed it here on INGO even. And I've even see you accomplish it occasionally. At least a little.