Yes, it's true. Material wealth has increased significantly over the years, but the distribution of that wealth is not equal. This leads to disparities in living conditions among different populations.

Income inequality has widened in many countries, despite the overall economic growth. The wealthiest individuals and corporations often accumulate a disproportionate share of the wealth, leaving a significant portion of the population with relatively low incomes.

In many urban areas, the cost of living has risen dramatically, particularly in terms of housing, healthcare, and education. This can make it difficult for individuals with lower incomes to afford necessities and maintain a decent standard of living.

Many people, particularly those in marginalized communities, face barriers to accessing education, healthcare, and employment opportunities. This can perpetuate cycles of poverty and deprivation, limiting individuals' ability to improve their circumstances.

These can be, in my opinion, some of the reasons.