The amount of $ 50,000 is not considered big per year, especially if taxes are deducted from it, which may reach 30%, and most developers get that amount even if they are not familiar with programming.
Blockchain makes hiring easier because there aren't a lot of companies that have enough employees to work on coding, and you also learn some economic things that enable you to earn some money quickly.
Bitcoin trading is better than that.
Bitcoin trading may and may not be better than offering services in programming/developing due to the market volatility in nature which can causes huge lost of traders but i still consider doing both if have the time and knowledge.