No. There are things that deduct points from your total, too (Bystanders that were carried off by Villains, the number of Scheme Twists that occurred, etc). It is all defined pretty well at the end of the base game rulebook.
I would quote it here, but I'm posting from my phone.
Clarification: Don't those extra things only apply to solo scoring?
The main rules are "If the players defeat the Mastermind, then the player with the most Victory Points is the most legendary hero of all and the individual winner." and "At the end of the game, Villains and Bystanders in your Victory Pile are worth the Victory Points shown on their cards." There's nothing in there about extra stuff.
The extra negatives in the end of the rulebook come immediately after the Solo rules and I've always read them as only applying to solo play.
The formatting is a little unclear if that Scoring section is a subheading or a completely new heading, but it only refers to a player in the singular throughout and would be the exact same negatives for every player so wouldn't change comparative scoring making it meaningless extra math.
The extra stuff is:
"If you win the game, add up your Victory Points and subtract these penalties:
-4 for each Bystander carried away by escaping Villains
-3 for each Scheme Twist that occurred
-1 for each Villain that escaped
Write down your score and which Heroes and Scheme and Mastermind you used. Compete to get better scores against that Mastermind and Scheme with different Heroes!"
The last bit really makes it sound like stuff meant only for competing against yourself not other people.