Some think that GOD and Deities are policing human race. People do not commit sins due to fear that they will be punished.
Some others think that the supernatural powers exist only to fulfill their wishes. They also try to please by offering something.
This is the todays situation. Is this system existed before? At the beginning, ie during Vedic period, people worshipped ONLY NATURE and invisible power which is responsible for well being of Universe.
You need not worship Rama or Krishna or Shiva to be a Hindu. They took birth as humans just to give demonstration of how a life has to be lived. They almost succeeded in achieving a state where their consciousness bloomed. They were completely in synchronization with Universe. You can only follow them to find a good way in your life.

Let us take an example of accident. Let us assume that 100 people are travelling in wrong side. As per probability, if there are five ways among 100 ways in which a person can meet with accident, 5 persons will meet with accident. Then, those 5 people will get saved if there are no other 95 people. Therefore, other people who are thinking that nothing has happened though they have done very small mistake, are contributing to the 5 accidents???