If I expect certain level of money back at the end of the month from rakeback, should I then play some hands that are -EV at the moment but profitable after I get my money from rakeback.

Or, should I just play the hands that are +EV and count rakeback as the extra to the winrate.

Where I'm coming from is the fact that some hands are -EV just because of the rake, thus having rakeback would make the environment as if with smaller rake

Also the rakeback amount is 30% (they promised 60% but it's some kind of small text catch - basically i get the same money back as the reward system)
The levels in question are the micros so that's why it probably matters quite a lot