Looking at this country now ,not all people want to move from the state we are to the next level
I expect that you mean your country is Nigeria, since it is the only country, as far as I know, in which presidential elections are held, which began yesterday, Saturday. Isn't it?
In the Nigerian example, the hypothesis of the candidates' offer to buy votes is very candidate, since there are 18 candidates competing for one seat (presidency). Of course, this falls within the list of political corruption, because a person who works to buy votes from voters to ensure victory means that he is not eligible for that position.
As for the voters, they are also involved in corruption if they accept to sell their votes at any cost.
What happens when the politicians offer indirect bribes? Promising the voting population direct stimulus or social welfare for their votes? Of course this is the appeal socialism/communism gives. It's using government resources to purchase votes under the guise of welfare programs. These programs have never been successful. They've just created a lot of debt. Voters are susceptible to such bribes -- why wouldn't they be. It's free money!
COVID produced a lot of this. Politicians running all over the world made sure to promise nonexistent government assets to the voters in order to help their reelection campaigns.