Meh in the end, it really depends on the person and how you feel about them. If you really love them, yea maybe all of this wouldn't really matter so much.
But who knows if we will find someone we "love" that much? I don't believe that it's so practical to look for true love. If I'm going to eventually "settle" for someone I have good feelings as a potential husband but may not necessarily be in head over heels crazy in love with, I might as well try to find someone who doesn't have a shady past. And whatever, I'm sure 99% of the male population has cheated, been in adulterous relationships, broken laws....right.
Of course, I know it's unrealistic to control that. But hey if I can't have "love", then at least hopefully someone up there will take pity on me not to get a previous adulterous wife-beating scheming lying dude lol.