Morally viable. One that conforms to personal and social norms and values.

For example, if one values free speech or resistance against reactionaries, then a platform which censors and promotes reactionaries would not be morally viable.

Many people, think they hold a different set of values than they do. When push comes to shove, following rules, stability, and security trump liberty, freedom, and equality. In reality some folks are much easier than even that - a quick bite of hot news releases a squirt of dopamine more enticing than all of these and it's much easier to justify that it didn't really compromise their moral behavior.