Without an arrangement, heirs inherit a job they did not ask for
Where no agreement exists, the heirs of a deceased owner inherit that owner's shares even though they may have no wish to be part of the business, and the business itself risks an interest being sold to someone outside the current ownership. A funded agreement gives the heirs a pre-determined price instead of a role.
Source: North American Company for Life and Health Insurance, Buy-sell with life insurance, 215NM-3a