I doubt any media companies are much interested in swaying self-professed pirates that demand rights not offered to their side. You're coming from this imagined position that you deserve license to others' work on your terms at your price. The companies offering media with DRM for sale on the market have no such delusion that they have an innate right your money; they're OK with you not taking their offer. That's fine, since the value proposition is suitable to millions of others who will make the purchase on the terms offered -- watching a movie today is still worth some number of dollars even if you might not be able to dust it off 20 years from now to watch again. They're not OK with you infringing their rights to their property instead of declining the offer. But really, your moral and ethical compass won't be turned by logic or debate.
In terms of a capitalist debate, one side charges money for substandard product. The other side charges less, while providing a much better product. It just turns out, with copyright applied, the better side is illegal.
But being illegal hasn't stopped pirates yet, has it?
One major side effect isn't them trying to sway us; instead they are forced to release movies in the range of weeks, and not the traditional years. So yes, pirates are a competitive pressure downward.
Don't get me wrong: I think people should be paid for creative works. I like creative stuffs. I just disagree with putting locks on our culture, that are physically or legally hard to remove.