Most common scenario is that these influencers does have that unlimited fund that they do have into their gambling accounts which means that betting would be sky is the limit
and when  they do hit up big multipliers then of course the winning would really be big on which it could really poke up someones interest on playing too
and this is how marketing works.

Viewers wouldnt really mind on how much that player had lost when they do play up and since theyre been funded then betting behavior would be totally different.

Fairness can be seen though and you could spot out for experienced players but for noobs then everything would be plain and simple.