If Pride were a god, by Pride's arrogance, He would never tolerate Heaven defeating Hell and would have long stamped all gods underfoot!
If Pride were a god, Michael from the Kingdom of Heaven surely would be as well!
There are too many irrational things; Pride is not a god. He hasn't yet ignited the crucial Divine Fire; the Seven Deadly Sins are still contributed by The Seven Demon Kings.
Understanding the key points, Lust probably figured something out: "Gluttony and Wrath are rivals; if you eliminate them, you will obtain the evolution key from outside Hell, and you'll become a Demon God in Hell!"
"Uh, that works too."
Wayne nodded. As long as he could strike down Gluttony and Wrath, removing the hidden threat in advance, Lust's thoughts were irrelevant.
With that, he reached out for the Lust chapter of the Seven Deadly Sins Melody and some territory.