The holy name’s potency is not meant to justify perpetuating our sinful mentality
“The chanting of the holy name is so auspicious that it can free everyone from the reactions of sinful activities. One should not conclude that one may continue to sin with the intention of chanting Hare Krsna to neutralize the reactions. Rather, one should be very careful to be free from all sins and never think of counteracting sinful activities by chanting the Hare Krsna mantra, for this is another offense. If by chance a devotee accidentally performs some sinful activity, the Lord will excuse him, but one should not intentionally perform sinful acts”(SB 6.3.31 purport).