>>43928126The most important thing is the aesthetics. You can have less than cutting edge graphics if the aesthetic remains pleasing to look at as the games age.
That being said, if you are one of the more fortunate companies to have the money to invest in better graphics (while still keeping a decent aesthetic), you probably should, unless you really want to say fuck you to the developers who don't have that opportunity.
In the end, you don't have to have the best graphics as long as it looks decent, but you should choose to not waste the opportunities given to you.