Because Training Hospital and Conquest complement each other focusing almost exclusively on them is an important strategy for PvE and especially PvP. Obviously a few people in a convergence will have this role for Warlord and Pvp island sake. However, because this strategy preferable for PvE yields, the opposite strategy arises: Spend almost as little as possible on Pv research and instead focus on resource and Dream buildings. Therefore a convergence that embraces these extremes will be more successful. Well I don't want to be the resource focused person and I bet no-one else does either. In fact i want to be the most advanced Pvp focused player at the forefront of Pvp. This last point is true even if my convergence expects me to PvE a medium amount.
To solve this please allow players to have 2 accounts and label them as such in-game. Make both accounts always be in the same convergence. Unless there are better solutions? I am very sure real cheaters will be able to create and use multiple accounts for much worse effects.