It is the proof of Griffin’s intelligence that he discovered certain rare drugs which made his body as transparent as a sheet of glass yet as solid as it as well. However, he misused his invention for living his life thereafter. He should have used it for the welfare of the society. He swallowed the drugs and used the effects initially to take revenge from his landlord who wanted to throw him out. He later robbed many people including the shopkeeper, the clergyman, the store and the theatrical company.

Thus, Griffin was a brilliant but immoral scientist.