Answer:
The importance of personal hygiene and food safety in the food industry is that a lack of both will get people sick, may possibly lead to death, and then law suits. It can cause food borne illnesses and that is a big thing. Personal hygiene rules to remember are: shower daily, wear a clean uniform and apron, wash hands when you enter the kitchen and whenever you touch your face/hair/put your hands in your pockets/ touch dirty towels/take out the garbage/eat/drink/smoke/use the restroom (remove apron and chef's jacket before doing so), wear gloves when you have cuts on your hands (change often and wash hands before putting gloves on and after taking them off), wear a hat or hair net to prevent hair from getting into food, don't chew gum, use plastic spoons to taste food and then throw them away.
Food safety would be to keep hot foods hot and cold foods cold (meaning out of the danger zone), avoid cross contamination by using a clean cutting board to prepare raw beef, pork, seafood, or chicken, wash your knife and sanitize it after use, don't mix raw and cooked product, observe FIFO, always store raw meat, seafood, and poultry on the bottom of the fridge, and ... I think the picture is clear.
Keep it clean, keep it safe and the health department won't shut you down and that is very important.