If one person doesn't show up on time, that's a bad habit. If no one shows up on time then that's a cultural issue[0], and much more devastating.
As an example, Zim dug itself a huge hole by kicking out the productive white farmers in 2000-2001. One of the key issues charitable foreign people trying to help Zimbabwe addressed was in re-educating the local population in why it matters that all the planting work is done by a certain time of year. The white farmers had all that knowledge, and cultural experience of hard work, and had made Zimbabwe the breadbasket of Africa.