What’s worse, one man’s sin or those who lead us to sin by theological error due to individualistic pride and arrogance? Since we’re comparing and contrasting.
What’s worse, one man’s theological error due to individualistic pride and arrogance (all presumed), or a group of men who lead us to sin by theological error due to collective individualistic pride and arrogance? Since we’re comparing and contrasting.
In other words, by rejecting determination of Truth by individual examination of evidence (which RCs are not to engage in to determine the veracity of her doctrines), because this can result in disunity and error as well as seeing Truth, then you can end up with an entire church being in error based upon the premise that they cannot error. For according to their autocratic interpretation, only their interpretation can be correct in any conflict.
And which sole ecclesia churches compete with each other for the title of One True Church.
I recommend you conduct your own "pew" research of the matter.