Master Key vs Skeleton Key Ownership

These individual mentalities are indeed understood by only the elite of mindsets, so for the short benefit of you being the reader, I will do a brief discussion on these keys. Mk: Can use it to a "MASTERS" level, such as Master Cheif etc (mentally). Sk: Can use it on EVERY aspect, such as Master, PHD, MBA etc. (mentally) Which one do you possess ? Comment below!