These two models demonstrate different forms of ground state modifications, but all due to the same origin of the light-matter interactions that effectively scales down the diabatic couplings. In Model I, the effective barrier height reduces significantly as the coupling increases. In Model II, the avoided crossing between the first two adiabats decreases, approaching a conical intersection. In both cases, the fundamental mechanism is the same: the diabatic couplings between MH diabats decrease due to the decreasing overlap integral of two PFS, and the polariton potential energy surfaces approach the MH diabatic potential (Eq. 16) with an increasing light-matter coupling. Under the infinite light-matter coupling limit, the polariton states reduce to the MH diabats tensor producted with PFSs (Eq. 17). The scaling of the diabatic couplings provides a new strategy to changing the ground state chemical reactivity through electron-photon coupling in contrast to the operating principle of VSC where cavity radiation can modify chemical reactivity through kinetics and dynamical effects.