It can sway people if the truth gets out before the falsehoods take root. I saw the videos from China in early January of people falling over in the streets and emergency rooms. I showed that stuff to my conservative news watching family members before the news here was covering the virus. I believe that saved the ones who would have otherwise believed what conservative media was saying early -- they knew it was real and potentially deadly before anyone could tell them otherwise. They told their friends and showed them the videos from China. The truth can make a difference if it arrives first.
The problem is the conspiracy machine often works faster than the truth. You got there early, many others with the wool over there eyes aren't so lucky, especially when for many their only worldview comes from people with their same biases.
