Pls advise:Going to learn PEGA for getting a high salary

Hi all, I am planning to learn Pega in a training institute in some few weeks. I want to know the truth and scope of this before entering I have heard some employees just did training with unreleveant 2 years experience in another field and then got placed. The same person after 2 years attended an interview in cts and got 20 lpa (with just 4 years of experience). Their onsite employees are getting 1 cr a year abroad. Is it really true that pega skilled employees are earning this much and if we learn and apply this same approach,can we get a higher CTC?. Im from oracle database background(a tech with 4 yrs experience)and thinking of moving? Will it be a worth to learn or is it a risk learning Pega(non tech) or do i need to learn some other technology (cloud,big data,data engineer etc...) for high ctc? Pls reply....you inputs are highly appreciated