Some plants are pollinated by the wind, and some are pollinated by insects or other small animals. When plants are pollinated by insects, it seems like some kind of agreement was made whereby the plant will provide the insect with something, if the insect will pollinate the plant's flowers in return. Although the plant and the insect may benefit because of their relationship with each other, the insect visiting a flower usually does not purposefully pollinate the flower.
Honey bees are very important insect pollinators.
Most of the time, both honey bees and the plants they visit are benefited. The honey bee gets some food and the plant gets pollinated. All that pollen will be taken back to the hive for the bees' use. The honey bee is a messy gatherer of food, and some pollen gets stuck on the hairs of its body. The bee does not make any effort to put the pollen in the right place.