Is Investing in Stock Market worth it ?

One day I was walking through the road, I realized something strange. I saw many vehicles passing by here and there. After gathering certain years experience of life, human beings walk under the assumption that the people who are driving those vehicles know driving and we tend to save ourselves from such traffic in a way that the other person knows driving. But in fact, we are not sure whether he knows it or not. We do look at vehicles which have a symbol “L” which denotes learner and we become careful if we happen to see such thing. However we do see when walking how much traffic is there and choose our speed and direction and maneuvering accordingly.
Similarly in a business set up when an investor invests his money in the stock market, first he analyzes the company, its growth over a period of time and then invests. When he is convinced, he invests his money and is watchful of any uncertain happenings which may be due to various reasons. But he assumes that the companies will perform in the same way as earlier and will give him benefit. He does look at the management structure, their efficiencies in decision making. But can never be sure how the company will perform in the near future. When investing in a new company, he is further more careful. The investor never knows what is happening at the Top management, how things were managed and do they really know to drive the business. The risk which an individual can take depends on his risk appetite like maneuvering and managing speed and direction, whether he wants to invest in IT stocks or financial services companies etc. These issues are very subjective and resolved by disclosure norms of corporate governance. Though the people making those reports are also from the company, though there are auditors to cross check the same. But these auditors are also human beings and can make mistakes. Then comes the role of SEBI who monitors for all these interests but not all.
Then what is the justification for investing. Is it the risk appetite, the gut feeling of human beings or a planned analysis of the same may be some technical tools or stock brokers who have prior experience in such field? Or is it the greed which forces human beings to invest to earn more in less time with more risk. Then it is a play between risk and return. Then are these investors paid sufficiently for the risk they have taken. Let’s discuss the share yield which is the return which these investors get Share yield is defined as the appreciation in the share prices + dividends received. Now if the share prices are rising there is a return which these investors are getting, but if the investors are getting dividend, then the money added in the reserves and surpluses of the company’s balance sheet will be less, hence less available capital with the company, and then borrowing the capital from debt or equity tools again and again and another cost. But if the investors don’t get dividends, they may notice the company as not performing well. Hence dividends act as a signal of good performance and as the market works on sentiments and fundamentals both, going by the sentiments share price should go up, but when the dividends are declared the share prices go down. Then what is the share yield then?? The question here, is investing in share market worth it?