When through force of circumstance people's lives have to focus exclusively on their biological needs we say they have been «reduced» to poverty. (faith.org.uk)
He realized the compulsive force of circumstance, but in some way, for him, man was free to choose his course even though not able to achieve his ends. (religion-online.org)
Infant beneficiaries ignorant of a trust will necessarily remain ignorant, by force of circumstance, until informed otherwise by some person completely unknown to them. (slaw.ca)