Memecoins for example only has hype, so if it's hyped then it makes money when it goes up, but it's for a moment, if you are lucky then you get in at the right time then it gets hyped and then you sell, and then hype is over, if you are wrong then you get in late and hype is over and you sell for a loss. Whereas utility isn't like that, if the utility it has is a good one then you are going to see it be a lot better and the return will be not bad at all and we are going to see it do a fine job without much trouble on the long run.
Basically these days all altcoins are being created for speculative purposes and for that choose some broad markets of altcoins space like meme, defi. In my opinion, no coin or token could be created without any real world utility but it is still created with the promise of achieving something bigger in near future. So, utility is something which must be associated with every token already but the availability of that utility may remain as a promise forever with most tokens which is the real problem here in this altcoin space.
Dogecoin could be one of the first generation memecoin with no actual use case but it became popular among crypto community and later Elon Musk adapted it to pump it. In my opinion, this has set wrong example to many devs and they just copying all the foot steps of dogecoin. Only pioneer may succeed and there cannot be any guarantee of success for all successors.