Subversion

The act of overturning, or the state of being overturned; entire overthrow; an overthrow from the foundation; utter ruin; destruction; as, the subversion of a government; the subversion of despotic power; the subversion of the constitution.

the act of subverting; as overthrowing or destroying a legally constituted government

destroying someone's (or some group's) honesty or loyalty; undermining moral integrity; "corruption of a minor"; "the big city's subversion of rural innocence"