Most biologists are either in academic or government employed and do not need to even think about money/making a profit.

People working in CS are mostly in industry and do not have 10+ year timeframes to leisurely discuss ideas.

And what CS inventions are as impactful as atomic bombs (as someone mentioned above?) I cannot think of any CS inventions that warrant such extended ethical discussion.

The only exception would be computer scientists working on weapons in the defense industry. They should absolutely be held back by ethical concerns like this.