Troi's control over her own being is regularly overturned in Star Trek: The Next Generation.  Attackers and manipulators frequently use her empathy as an avenue to disable Troi.  In "The Child" an alien life force impregnates Troi without her consent and she, in a profound maternal empathic connection to the resulting child, ignores his potential threat.  She was used as a reproductive tool for experiment, but accepted the circumstance warmly.  The episode emphasizes woman's role as reproducer and diminishes the importance of her consent.