I'm not sure how real life comparisons can be completely avoided. For instance, when capsuleers talk about what ships they have, what are their properties and how they are fitted, they do it pretty much in the same manner as someone might talk about cars in real life, and I think it's actually quite plausible point of reference in this case.
When it comes to religion or politics, it would be strange to not use the existing best practices to convince the listeners, induce uncertainty, appeal to emotion, sell ideas etc. There is evidence that these practices have not changed dramatically over the course of history and I think it is generally not better for role-playing purposes to come up with completely new ways to interact with other people.
While budget, constitution or local affairs are poorly detailed in PF, there's still no real lack of concrete topics for Gallente political discussion. Philosophical questions or prejudices like here are perhaps more accessible for a wide audience and that's probably why they make interesting IGS material.
I agree with others here that if you form a mixture of your own and your character's opinions, it becomes very difficult to play with you, especially when there's a contentious topic under discussion. I think this the real problem, rather than having something similar existing in real life.