You are right on-spot there. Misinformation is one thing that really threatens not only financial systems and institutions but our democratic ideals at large as well. The ramifications of fake news extend far beyond what can be easily foreseeable, since it arouses fear and outrage in sometimes precarious situations like financial markets depending upon market sentiment generated.
At the end of things though,Fundamentally its about taking responsibility. Specifically for infrastructure providers / network designers within internet spaces in identifying and eliminating disinfo source content or toxic elements whenever they occur. Spreading reliable information is done best by providing transparency rather than operating at super opaque levels without revealing significant rule-sets even internally.
Figuring out those balances you mentioned might require extensive compromise, knowing reasonable measure is being considered from both perspectives to efficiently trot out alongside mandates such as voter reform policy amendments targeting increasing liability fo creators/distributors to fraudulent/ malicious illegal misinformation on close mutual review of limits posed within constitutional freedom eg free expression rights .