So you're saying that a powerful phone needs to be a good camera? Can you think of a counterfactual?
If you're just using it for communications, you don't need a flagship phone; every phone works fine for that these days. There's tons of mid-grade phones now that have excellent large screens (even OLED) and plenty of power for normal tasks (including all but the most demanding games), and quite decent cameras, without cameras protruding far out of the case like on the the top-end flagships.
If I want a good camera, well I prefer something from Sony/Fuji, for example.