While true it is possible that Sol's power level giggle may be way out there, Sol him self is not a big threat honestly. He's not evil, more douche and full of him self(literally), hes just has a sick way of passing his time. i personally have no problem with god tier characters, or champions, they help make those stories in which the hero is presented with all the odds.
If Sol was, and I kid you not, a destructive being without a care for others then I would be like, "Wtf Riot". The thing is hes not that he prefers to enjoy things, he wants those to plead with him, for them to just run around like chickens with their heads chop off. If what I think is true that he is coming to destroy the world its obvious how its going to play out, Sol is going to tell them he's here to destroy us but then some one is going to be like, "What if we make a deal?" and Sol would agree with the wager being he chooses what they have to do and that if they fail the planet gets smashed, if they pass they don't get crushed.
Like I said hes not going to mess things up he want's something to make him laugh or entertain him.