But one possible argument is that Annika had her individuality stolen from her. When she was removed from the collective she had what was stolen from her returned.
In the case of Quinn he was impriosned in part for wanting to end his own life. So he was denied choice.
In the case of Tuvok and Neelix, they knew the risks when stepping into the transporter that there was a possibility no matter how remote that the transporter could malfunction which it did. If you willingly take a risk and it doesn't pay off why should someone else have to pay for your gamble?