Final answer:
The concept of scarcity explains why people are not content with just meeting their needs because there are limited resources but unlimited desires. This results in a continuous pursuit of more which has yet to be balanced with sustainable living due to complex social dynamics.
Step-by-step explanation:
The question 'Why aren’t people content with just meeting their needs?' touches on the economic concept of scarcity, which refers to the limited nature of society's resources. Scarcity means that people and societies cannot have all the time, money, possessions, and experiences they might wish for, leading to a situation where there are unlimited wants but limited resources. This discrepancy often drives people to desire more than what is necessary for basic survival, leading to behaviors such as the accumulation of wealth, competitive work environments, and consumer culture. Moreover, creating a master plan for sustainable living is complex due to the differing values, priorities, and interests of various stakeholders in society. Considering that society has not yet found a way for humans to live on Earth indefinitely without exceeding its limits, we continue to face challenges such as poverty, inequality, and environmental degradation. The question of why there is no master plan for sustainable living underscores the difficulty in balancing economic growth with environmental preservation and social equity.