I understand what the player is going through and what this might mean to him.
But at the same time, I absolutely do not agree with this because this seems to be almost suicidal.
And I honestly cannot decide if this is bravery or stupidity. This involves a huge amount of risk for the player. But I have to say that this man is something else. He prioritized football over his own health, this is not something that should be done but this is actually amazing.
It is stupidity. If there is a danger of him dying on the pitch, then no team should be getting him any minutes at all and he should be willing to retire. I get that he is young and not at a retirement age and he doesn't know what to do and feels like he has some years left to provide some meaningful football.
However, he is not going to make too much anyway and he could simply just turn his football knowledge into something else other than a player. He could be a staff, he could be a commentator, he could be anything in the football field, a scout even. That will not pay him as much maybe but the difference wouldn't be big enough to make him go broke. The amount of money in football is good enough that he should have enough to retire by now and that is why I doubt that it is about finances.