Risk is bad in business, anything unforseeable should be avoided. Do you really want to stake the success of your business on luck?
Yeah, some, perhaps even many, risks get you sunk. On the other side of the coin, nothing we discuss here would exist if people didn't take risks with their businesses.
The world would be so different if no-one took risks. I daresay we wouldn't be making tools, have a knowledge of agriculture, or even have spread out of Africa.