especially in Amway Corporation. is it possible for an average indian to achieve great heights in amway business ? how promising is the future of network marketing companies ? how long does it usually take to start earning a handsome amount in amway business ? why most of the people dont want to get involved ? what about saturation ?

All active or earned income from employment and business are subjected to income tax.

Do passive income from real estate and stock and direct selling business / MLM subjected to income tax?

Note:
Forget about stock and real estate capital gain tax because there is none in Malaysia.