The correct answer to this open question is the following.
I think Hariot's account of the Algonquins had the following effect on his English readers.
First of all, English people could be informed about the people English colonists encountered on his trip to North America. English people had no idea of what could be there in those far away regions, not even thinking if humans inhabited those lands.
So the description of Hariot portrayed was of primitive indigenous civilizations that basically spend all their interactions with mother nature. He described how Native Indians wear dresses made of animal skins such as deers. He described these Native Indians had a simple life where men hunt animals and collect fruits to feed their families. He also said that they did not have weapons made of iron, as the English had. Instead, they had weapons made of wood and rocks.
