Why do people who learn have more time than people who work?
If you learn you can come in 9, 9:10 , 9:30 or whatever. Saying you were late because of Davening is acceptable
However if you work
You need to be there at 9, some places will write you up or fire you for being late. I heard of one place that had 15 employees and 12 desks and if you showed up late you didnt get a desk and had to go home and saying “I had to Pray” is no excuse, the boss doesnt care. Either pray earlier or pray faster or get a new job