Wakey wakey

I woke up this morning and wondered who profited the most when the big businesses don't pay their tax.
I know the  board members probably get bigger bonuses what about the share holders?
I thought I understood how capitalism worked but it is more complicated than I realised. So I googled a definition.
Capitalism is an economic system. In it

1. the government plays a secondary role. 

Does this mean that  governments are ruled by BIG Business?

2.People and companies make most of the decisions, and own most of the property. ... 

Who are the people?

3.The means of production are largely or entirely privately owned (by individuals or companies) and operated for profit.

Owning the means of production is key to controlling the working class. Who actually  produces?
The workers who do the WORK it seems come bottom of the heap.
 And when the company do not pay tax the share holders must rub their hands.