Even when multiple miners divided these benefits, there is still adequate incentive to pursue them. Whenever a new block is mined, the effective miner receives a bunch of recently produced bitcoins. Initially, it was 50, however then it halved to 25, and now it is 12. 5 (about $119,000 in October 2019).
At that point, all 21 million bitcoins will have been mined, and miners will depend entirely on fees to maintain the network. When Bitcoin was launched, it was prepared that the total supply of the cryptocurrency would be 21 million tokens. The reality that miners have actually arranged themselves into swimming pools worries some.
They might also block others' deals. Just put, this pool of miners would have the power to overwhelm the dispersed nature of the system, verifying deceptive transactions by virtue of the bulk power it would hold. That might spell completion of Bitcoin, but even a so-called 51% attack would most likely not allow the bad actors to reverse old transactions because the proof of work requirement makes that procedure so labor-intensive.
When you manage the entire currency, with whom can you trade? A 51% attack is a financially suicidal proposition from the miners' perspective. When, I Found This Interesting mining pool, reached 51% of the network's computing power in 2014, it voluntarily assured to not surpass 39. 99% of the Bitcoin hash rate in order to keep confidence in the cryptocurrency's worth.