"A lot of different people arrive here from the poor countries."
Translation:Sok különböző ember érkezik ide a szegény országokból.
Yes. Your sentence puts the emphasis on the verb since you chose to leave it intact. So, what do a lot of different people do from the poor countries? They arrive here. That is what your sentence is stressing.
The sentences above, on the other hand, just speak about what is happening in general, or about who arrives here.