My understanding of Vikings in the historic period is that their raids were not exclusively about booty, and encompassed a lot of murder, including artfully pulling out a victims' lungs while they were alive.The book of common prayer includes them as one of the scourges.
They not only raided but settled England and in fact agreed with the locals on a division of the land along borders which can be identified to this day. They are part of the genetic diversity of "The Islands"
Whatever you might want to say about the modern entrepreneurs, they apparently have foregone some of these activities.

References:
Rutherford's book "Sarum" (although I've seen allusions to this elsewhere).