It all depends on how we define better, and for any negative situation, you can change your definition of better so it is not included.

If one believes that all human life is equally valuable, even when still in the womb, then our world has become drastically worse. Worldwide, the population of America is aborted every 6 years, or one WW2 every year.

Or, consider Iceland's recent achievement in eradicating Down's syndrome, by killing all babies with Down's syndrome.

Our world has dramatically improved in certain aspects of livelihood, but has dramatically worsened in our respect for human life. Proof of this statement is the average reader's inability to comprehend what I've just written.