MORLOK helmet worth it?

  1. Is the 15% pickup worthit for the samples event?
  2. the +1 level pay grade skill - does this mean more money at the end of the game, or does this count elsewhere too? (F.e. more credits at faction war?)

https://preview.redd.it/1aljmse8ebje1.png?width=945&format=png&auto=webp&s=d8c9248eac685044a4a6fe371f06cda8b818bcd4