No, most people aren't aware of the danger...........
And that's why they can't hear when they're 50. Damage doesn't appear right away. Ever hear of tinnitus?
Anyway, different headphones have different impedances. The beats pro are 18 Ohms and the m-100 are 32 Ohms meaning you need more power to drive the m-100, or turn up the volume. It's in the design and not a defect. When driven properly from a good source (ie., not a weak computer headphone jack) the m-100 can really punch in the bass and the treble is not bad.
I find I need to EQ the bass down as it can be way too much for me but the headphones are definately better than the beats pro in my opinion. Try listening to them from a smartphone or even better a dedicated music player. The m-100 are easy to drive so either you're damaging your hearing or your computer output is absolute crap.