Was Crocodile stronger at Marineford? Or was he holding back in Alabasta?

 During the Alabasta arc, Crocodile displayed a level of power that was initially considered overwhelming by the Straw Hat Pirates. He possessed the Logia-type Devil Fruit called the Suna Suna no Mi (Sand-Sand Fruit), which granted him the ability to control and transform into sand. He had a reputation as a Shichibukai and controlled the desert kingdom of Alabasta from the shadows. His strength was showcased through his battles with Luffy and others. At Marineford, Crocodile was present as part of the war that took place at Marine Headquarters. While he did participate in the battle, he didn't display the same level of dominance as some other powerful characters present. This has led fans to speculate that he might not have been as strong as initially portrayed in Alabasta. It's important to note that power scaling and character abilities can be subject to interpretation and development by the author. Oda often keeps details deliberately open-ended to keep the story intriguing.

To what extent do the benefits of the Industrial Revolution outweigh the costs?

 The Industrial Revolution, which took place in Europe and North America in the 18th and 19th centuries, brought about significant economic and social changes that had both benefits and costs.

On the positive side, the Industrial Revolution led to significant advances in agriculture, manufacturing, transportation, and communication that contributed to the growth of national economies and the overall standard of living. It also led to the development of new technologies, such as the steam engine and the power loom, which revolutionized industry and made it possible to produce goods more efficiently and cheaply.

However, the Industrial Revolution also had negative consequences, including the exploitation of workers, environmental degradation, and social unrest. The rapid growth of industry led to the development of urban centers, which often experienced overcrowding, pollution, and poor living conditions. Many workers were subjected to long hours, low pay, and hazardous working conditions, and they often lacked basic rights and protections.

It is difficult to say to what extent the benefits of the Industrial Revolution outweigh the costs, as this will depend on one's perspective and priorities. Some people may argue that the economic and technological progress brought about by the Industrial Revolution has had long-term benefits that outweigh the negative consequences, while others may argue that the negative impacts were too severe and that the benefits did not outweigh the costs. Ultimately, the impact of the Industrial Revolution will depend on how it is evaluated and judged in relation to the values and goals of a given society.