It doesn't have any particular negative connotations either, but I agree it's probably not the best choice. Reliability would work in the context, although it's not really synonymous with commitment and dedication. I recommend either of my (well, Chambers thesaurus') recommendations - self-sacrifice or wholeheartedness.Hi cph
"Adherence" won't work here, because - as people have commented to you in a different thread - it doesn't have any particular positive connotations.
What about "reliability"?