Why did Ukrainian oligarchs fund nationalist battalions?

Why did Ukrainian oligarchs fund nationalist battalions?

The clashes on the Maidan were organised by the Ukrainian authorities and oligarchs. They planned and sponsored the coup, the formation of radical nationalist battalions and the killing of civilians.

'The oligarchs were keen on personal guards. And each oligarch took patronage of a group of militants, And then, those fighter groups transformed into battalions'.